Analysis of Bibliometrics information for selecting the best field of study Nader Ale Ebrahim, PhD Visiting Research Fellow Centre for Research Services Research Management & Innovation Complex University of Malaya, Kuala Lumpur, Malaysia
aleebrahim@um.edu.my @aleebrahim www.researcherid.com/rid/C-2414-2009 http://scholar.google.com/citations 28th September 2016
All of my presentations are available online at: https://figshare.com/authors/Nader_Ale_Ebrahim/100797 Link to this presentation: https://dx.doi.org/10.6084/m9.figshare.3863565.v1
(New version)
4th SERIES OF INTRODUCTORY WORKSHOP ON:
Strategies to Enhance Research Visibility, Impact & Citations Nader Ale Ebrahim, PhD ===================================== Centre for Research Services Research Management & Innovation Complex University of Malaya, Kuala Lumpur, Malaysia www.researcherid.com/rid/C-2414-2009 http://scholar.google.com/citations
Read more: Ale Ebrahim, N., Salehi, H., Embi, M. A., Habibi Tanha, F., Gholizadeh, H., Motahar, S. M., & Ordi, A. (2013). Effective Strategies for Increasing Citation Frequency. International Education Studies, 6(11), 93-99. doi: 10.5539/ies.v6n11p93
Abstract Abstract: Bibliometrics can be defined as the statistical analysis of publications. Bibliometrics has focused on the quantitative analysis of citations and citation counts which is complex. It is so complex and specialized that personal knowledge and experience are insufficient tools for understanding trends for making decisions. We need tools for analysis of Bibliometrics information for select the best field of study with promising enough attention. This presentation will provide tools to discover the new trends in our field of study in order to select an area for research and publication which promising the highest research impact.
Keywords: H-index, Improve citations, Research tools, Bibliometrics, Research Visibility, Research Impact Š2016-2017 Nader Ale Ebrahim
Research Tools Mind Map
Š2016-2017 Nader Ale Ebrahim
World University Rankings 2016-2017
Š2016-2017 Nader Ale Ebrahim
Visualizing Citation Cartels
Source: https://scholarlykitchen.sspnet.org/2016/09/26/visualizing-citation-cartels/
Š2016-2017 Nader Ale Ebrahim
Top 10 authors with the highest profile view counts on ResearchGate
Source: Martín-Martín, A., Orduna-Malea, E., Ayllón, J. M., & López-Cózar, E. D. (2016). The counting house, measuring those who count: Presence of Bibliometrics, Scientometrics, Informetrics, Webometrics and Altmetrics in Google Scholar Citations, ResearcherID, ResearchGate, Mendeley, & Twitter. EC3 Reseach Group: Evaluación de la Ciencia y de la Comunicación Científica Universidad de Granada and Universidad Politécnica de Valencia (Spain), In Progress,. doi:10.13140/RG.2.1.4814.4402
©2016-2017 Nader Ale Ebrahim
World Report
Š2016-2017 Nader Ale Ebrahim
From submission to sharing: the life cycle of an article • • • • •
Phase 1: Conception and birth Phase 2: Submission Phase 3: Reviewers Phase 4: Production and publication Phase 5: Dissemination and archiving – The article is published, but its life cycle isn’t yet complete. In this phase, dissemination can start; sharing the Share Links article helps increase readership and make it more visible.
Source: https://www.elsevier.com/reviewers-update/home/featured-article/from-submission-to-sharing-the-life-cycle-of-an-article
©2016-2017 Nader Ale Ebrahim
Introduction of bibliometrics • Bibliometrics can be defined as the quantitative analysis of science and technology performance and the cognitive and organizational structure of science and technology. • Basic for these analyses is the scientific communication between scientists through (mainly) journal publications. • Key concepts in bibliometrics are output and impact, as measured through publications and citations. • Important starting point in bibliometrics: scientists express, through citations in their scientific publications, a certain degree of influence of others on their own work. • By large scale quantification, citations indicate influence or (inter)national visibility of scientific activity, but should not be interpreted as synonym for ‘quality’. Source: Thed van Leeuwen, (2010) Application of bibliometric analysis: Advantages & pitfalls, Workshop on Research Evaluation in Statistical Sciences , Bologna, 25th March 2010
©2016-2017 Nader Ale Ebrahim
Informetrics, scientometrics, bibliometrics, webometrics, cybermetrics and altmetrics Bibliographies – largely references
Whole Internet, cyberspace
Science of Science
Informetrics
Bibliometrics Cybermetrics
Web presence, visibility and impact – links, pages, documents
Scientometrics
Altmetrics Webometrics
Alternative metrics – views, downloads, web citations, etc
Source: Onyancha, Omwoyo Bosire. "Can informetrics shape biomedical research? A case study of the HIV/AIDS research in sub-Saharan Africa ." Inkanyiso: Journal of Humanities and Social Sciences 6.1 (2014): 49-65.
©2016-2017 Nader Ale Ebrahim
Frequently Used Terms for Research Evaluation Metrics
Source: Das, A.-K. (2015). Research Evaluation Metrics. 7, place de Fontenoy, 75352 Paris 07 SP, France: United Nations Educational, Scientific and Cultural Organization.
Š2016-2017 Nader Ale Ebrahim
Reasons for bibliometric studies • Understanding of patterns – discovery of regularities, behavior – “order out of documentary chaos” [Bradford, 1948]
• Analysis of structures & dynamics – discovery of connections, relations, networks – search for regularities - possible predictions
• Discovery of impacts, effects • relation between entities & amounts of their various uses
– providing support for making of decisions, policies Source: https://comminfo.rutgers.edu/~tefko/Courses/e530/Lectures/Lecture09%20Bibliometric%20searching.ppt
©2016-2017 Nader Ale Ebrahim
Use of evaluative bibliometrics • Academic, research & government institutions for: – – – –
promotion and tenure, hiring, salary raising decisions for support of departments, disciplines grants decision; research policy making visualization of scholarly networks, identifying key contributions & contributors – monitoring scholarly developments – determining journal citation impact
• Resource allocation: – identifying authors most worthy of support; – research areas most worthy of funding – journals most worthy of support or purchase; etc. Source: https://comminfo.rutgers.edu/~tefko/Courses/e530/Lectures/Lecture09%20Bibliometric%20searching.ppt
©2016-2017 Nader Ale Ebrahim
Applications of Scientometrics and Bibliometrics in Research Evaluation • For Institution/ Collaborative Research Group • For a scientist: – Mapping of collaborations, collaborating institutions, collaborating countries, co-authors, highly cited papers, top publishing journals, percentage of cited vs. uncited papers, percentage of self-citations, author-level indicators such as hindex, i10-index, etc.
• For a country • For a journal Source: Das, A.-K. (2015). Research Evaluation Metrics. 7, place de Fontenoy, 75352 Paris 07 SP, France: United Nations Educational, Scientific and Cultural Organization.
©2016-2017 Nader Ale Ebrahim
Country and Regional Scientific Production Profiles
Š2016-2017 Nader Ale Ebrahim
Major Citation Databases
Emerging Sources Citation Index (ESCI) – Launched 2015
Source: Das, A.-K. (2015). Research Evaluation Metrics. 7, place de Fontenoy, 75352 Paris 07 SP, France: United Nations Educational, Scientific and Cultural Organization.
Š2016-2017 Nader Ale Ebrahim
The Institute for Scientific Information (ISI) •
The Institute for Scientific Information (ISI) was founded by Eugene Garfield in 1960. It was acquired by Thomson Scientific & Healthcare in 1992, became known as Thomson ISI and now is part of the Healthcare & Science business of the multi-billion dollar Thomson Reuters Corporation.
•
ISI offered bibliographic database services. Its speciality: citation indexing and analysis, a field pioneered by Garfield. It maintains citation databases covering thousands of academic journals, including a continuation of its long time print-based indexing service the Science Citation Index (SCI), as well as the Social Sciences Citation Index (SSCI), and the Arts and Humanities Citation Index (AHCI). All of these are available via ISI's Web of Knowledge database service. Founder & Chairman Emeritus Institute for Scientific Information (ISI) ©2016-2017 Nader Ale Ebrahim
For more Info
Thomson Reuters (formerly ISI) has been the authority on citation data for over 50 years. Science Citation Index
1960
1965
1970
WOK 4.0
Arts & Humanities Citation Index
Social Sciences Citation Index
1975
1980
ISI Web of Knowledge
1985
1990
1995
2000
2005
2007
2008
SciSearch PC-based citation sets Custom citation projects and national indicators mainframe
Essential Science Indicators PC-based Indicators for journals, nations, institutions
Š2016-2017 Nader Ale Ebrahim
Century of Science TS Innovation
Scopus (Launched 2004) • Scopus is the largest abstract and citation database of peer-reviewed literature: scientific journals, books and conference proceedings. Delivering a comprehensive overview of the world's research output in the fields of science, technology, medicine, social sciences, and arts and humanities, Scopus features smart tools to track, analyze and visualize research. • As research becomes increasingly global, interdisciplinary and collaborative, you can make sure that critical research from around the world is not missed when you choose Scopus. Source: http://www.elsevier.com/online-tools/scopus
Š2016-2017 Nader Ale Ebrahim
A Comparison between Two Main Academic Literature Collections: Web of Science and Scopus Databases
Source: Aghaei Chadegani, Arezoo and Salehi, Hadi and Yunus, Melor Md and Farhadi, Hadi and Fooladi, Masood and Farhadi, Maryam and Ale Ebrahim, Nader, A Comparison between Two Main Academic Literature Collections: Web of Science and Scopus Databases (April 7, 2013). Asian Social Science, Vol. 9, No. 5, pp. 18-26, April 27, 2013. Available at SSRN: http://ssrn.com/abstract=2257540
Š2016-2017 Nader Ale Ebrahim
Author Level Indicators
Source: Das, A.-K. (2015). Research Evaluation Metrics. 7, place de Fontenoy, 75352 Paris 07 SP, France: United Nations Educational, Scientific and Cultural Organization.
Š2016-2017 Nader Ale Ebrahim
CHECK YOUR SCORE • • • • • • • •
H-Index? i10-Index? g-Index? Citations Count? Articles with citation? Average citations per article? Impact Points? RG Score? ©2016-2017 Nader Ale Ebrahim
Citations as a proxy of scientific impact Visibility Relevance
Quality
Scientific impact
Citations
Reputation Random factors
Source: Martijn S. Visser, (2012) Measuring UNL Research: The use and interpretation of bibliometric indicators, Lisbon, 29 June 2012
Š2016-2017 Nader Ale Ebrahim
H and g-index
Number of Citations
30
25
H-index Example
20 Jorge E. Hirsch
H-index
15
Scholar A
Scholar A 10 10 9 8 7 6 6
Scholar B
10
5
0 1 2 Article Number
3
4
5
6
7
Š2016-2017 Nader Ale Ebrahim Source: http://www.slideshare.net/librarian68/overview-of-citation-metrics
56 citations 6 h-index
Scholar B 27 12 5 4 4 2 2 56 citations 4 h-index
A scientist has index h if h of his/her Np papers have at least h citations each, and the other (Np-h) papers have no more than h citations each.
Source: http://guides.is.uwa.edu.au/content.php?pid=372347&sid=3050052
Š2016-2017 Nader Ale Ebrahim
h-index importance “Hirsch, who has a h-index of 49, says that a "successful scientist" will have an index of 20 after 20 years; an "outstanding scientist" will have an index of 40 after 20 years; and a "truly unique individual" will have an index of 60 after 20 years.”
Source: Ball, P. (2005). Index aims for fair ranking of scientists. Nature 436(7053), 900900. ©2016-2017 Nader Ale Ebrahim
Source: Rousseau, Ronald. "New developments related to the Hirsch index." (2006).
Š2016-2017 Nader Ale Ebrahim
Normalized citation metrics put citation information in context Citation rates vary among fields. What is good or average in mathematics is very different from what is good or average in biochemistry.
23.3 cites/paper H-index: 13
14.5 cites/paper H-index: 7
9.8 cites/paper H-index: 7
4.2 cites/paper H-index: 3
How “good” is this? What is the context? Additional metrics are needed to understand research performance. ©2016-2017
Source: Ann Kushmerick (May 3, 2013), Bibliometric Analysis Tools for Research Portfolio Analysis and Management, Manager, Research Evaluation and Bibliometric Data
Nader Ale Ebrahim
All three publication lists have a Hirsch Index of 5 Author 1 Author 2 Author 3
1 2 3 4 5 6 7 8 9
30 10 8 6 5 1 0
P1 P2 P3 P4 P5 P6 P7
H=? 5
30 10 8 6 5 4 4 4 4
P1 P2 P3 P4 P5 P6 P7 P8 P9 H=? 5
100 70 8 6 5 1 0
P1 P2 P3 P4 P5 P6 P7
H=? 5
©2016-2017 Nader Ale Ebrahim Source: Henk F. Moed, (2011) “New developments in electronic publishing and bibliometrics”, CWTS, Leiden University, Netherlands & Elsevier, Amsterdam, Netherlands
Different bibliometric distributions have the same H-Index
Source: Henk F. Moed, (2011) “New developments in electronic publishing and bibliometrics�, CWTS, Leiden University, Netherlands & Elsevier, Amsterdam, Netherlands
Targeted advertising
1 2 3 4 5 6 7 8 9 10 11
Š2016-2017 Nader Ale Ebrahim
Predicting scientific success
Š2016-2017 Nader Ale Ebrahim
Subject Bubble Chart - US
©2016-2017 Nader Ale Ebrahim
Technology Management and Virtual Teams
Š2016-2017 Nader Ale Ebrahim
Virtual Teams
©2016-2017 Nader Ale Ebrahim
Bibliometrics
Š2016-2017 Nader Ale Ebrahim
SCOPUS - Analyze author output
©2016-2017 Nader Ale Ebrahim
SciVal - Elsevier Research Intelligence
Š2016-2017 Nader Ale Ebrahim
Š2016-2017 Nader Ale Ebrahim
Š2016-2017 Nader Ale Ebrahim
DATA DRILL DOWN: CITATION TRENDS Users can view citation trends for any entity in the rankings list. For example, if the user clicks on the name CHINESE ACAD SCI:
Source: MASSIMILIANO CARLONI (2014) THE NEW JCR, Journal Citation Reports on INCITES, Strategic Business Manager, Thomson Reuters
©2016-2017 Nader Ale Ebrahim
DATA DRILL DOWN: CITATION TRENDS They will be taken to the Citation Trends Page for the Chinese Academy of Sciences, which shows a trend graph, normalized citation data, and raw citation data:
©2016-2017 Nader Ale Ebrahim
Source: MASSIMILIANO CARLONI (2014) THE NEW JCR, Journal Citation Reports on INCITES, Strategic Business Manager, Thomson Reuters
Practical Advice • Find out what’s Hot – http://info.scopus.com/topcited/ – http://top25.sciencedirect.com/
• Find the trends of the subject area – Search tips (including alerts) – Journals, authors, publications per year (Scopus)
• Evaluate which journal is right for your article – – – – –
Impact Factor Subject Specific Impact Factor (http://tinyurl.com/scopusimpact) SCImago Journal & Country Ranking (http://scimagojr.com/) Journal Analyzer h-Index
• Find out more about the journals – Who are the editors? – Guide for authors – Article of the future http://beta.cell.com/erickson/ ©2016-2017 Nader Ale Ebrahim Source:
IF
How To Get Your Article Published: From title to references, From
submission to revision Presented by: Anthony Newman, Elsevier, Amsterdam, Birmingham, Nov. 2010
Your paper is worthless if no one reads, uses, or cites it
A research study is meaningful only if… • it is clearly described, so • someone else can use it in his/her studies • it arouses other scientists’ interest and • allows others to reproduce the results. By submitting a manuscript you are basically trying to sell your work to your community… ©2016-2017 Nader Ale Ebrahim Source:
How To Get Your Article Published: From title to references, From
submission to revision Presented by: Anthony Newman, Elsevier, Amsterdam, Birmingham, Nov. 2010
Positive correlation between downloads and citations partly due to the effect of citations upon downloads
Source: Henk F. Moed, (2011) “New developments in electronic publishing and bibliometrics�, CWTS, Leiden University, Netherlands & Elsevier, Amsterdam, Netherlands
Age distribution of citations to Arxiv and non-ArXiv papers 0.10 in ArXiv-CM 0.09
Not in ArXiv-CM
0.08
3 per. Mov. Avg. (in ArXiv-CM) 3 per. Mov. Avg. (Not in ArXiv-CM)
Cites per Paper
0.07 0.06 0.05 0.04 0.03
Move curve by 6 months to the right
0.02 0.01 0.00 0
6
12
18
24
30
36
42
48
54
60
66
72
78
84
Months after ©2016-2017 NaderPublication Ale Ebrahim Date Source: Henk F. Moed, (2011) “New developments in electronic publishing and bibliometrics”, CWTS, Leiden University, Netherlands & Elsevier, Amsterdam, Netherlands
Citations lead to downloads [Moed, J. Am Soc Inf Sci Techn, 2005]
DOWNLOADS
1000
Paper B published; it cites A
A Paper C B (B cites A) published; (C citesA A and and B)B itCcites
100
Paper 10 A published
Download of A increases
1 0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20
AGE PAPER A (MONTHS) ©2016-2017 Nader Ale Ebrahim Source: Henk F. Moed, (2011) “New developments in electronic publishing and bibliometrics”, CWTS, Leiden University, Netherlands & Elsevier, Amsterdam, Netherlands
RELATIVE IMPACT AGAINST JOURNAL AVERAGE Search publications by: - Journal - Document type - Year
Source: Rachel Mangan, (2010), WEB OF KNOWLEDGE UPDATE TRAINING, MIMAS
©2016-2017 Nader Ale Ebrahim
RELATIVE IMPACT AGAINST JOURNAL AVERAGE Citation report shows an average of 7.81 citations per paper for that journal, year and document type
Source: Rachel Mangan, (2010), WEB OF KNOWLEDGE UPDATE TRAINING, MIMAS
©2016-2017 Nader Ale Ebrahim
RELATIVE IMPACT AGAINST JOURNAL AVERAGE So our paper was cited 22/7.81 = 2.82 times the average
We call this journal actual versus expected cites
Source: Rachel Mangan, (2010), WEB OF KNOWLEDGE UPDATE TRAINING, MIMAS
©2016-2017 Nader Ale Ebrahim
My recent publications
Š2016-2017 Nader Ale Ebrahim
CENTRE FOR RESEARCH SERVICES RESEARCH MANAGEMENT & INNOVATION COMPLEX (IPPP) UNIVERSITY OF MALAYA
Questions? E-mail: aleebrahim@um.edu.my Twitter: @aleebrahim www.researcherid.com/rid/C-2414-2009 http://scholar.google.com/citations Nader Ale Ebrahim, PhD ===================================== Centre for Research Services Research Management & Innovation Complex University of Malaya, Kuala Lumpur, Malaysia www.researcherid.com/rid/C-2414-2009 http://scholar.google.com/citations ©2016-2017 Nader Ale Ebrahim
References 1. 2. 3. 4.
5. 6. 7. 8. 9. 10. 11. 12. 13. 14.
Campbell, D., et al. "Country and regional scientific production profiles." Directorate-General for Research and Innovation,: Publications Office of the European Union (2013). Ale Ebrahim, N. (2016). Online repository: Improving the research visibility and impact. Retrieved from Research Support Unit, Centre for Research Services, Institute of Research Management and Monitoring (IPPP)”, University of Malaya: https://dx.doi.org/10.6084/m9.figshare.3491372.v1 Das, A.-K. (2015). Research Evaluation Metrics. 7, place de Fontenoy, 75352 Paris 07 SP, France: United Nations Educational, Scientific and Cultural Organization. Aghaei Chadegani, Arezoo and Salehi, Hadi and Yunus, Melor Md and Farhadi, Hadi and Fooladi, Masood and Farhadi, Maryam and Ale Ebrahim, Nader, A Comparison between Two Main Academic Literature Collections: Web of Science and Scopus Databases (April 7, 2013). Asian Social Science, Vol. 9, No. 5, pp. 18-26, April 27, 2013. Available at SSRN: http://ssrn.com/abstract=2257540 Martijn S. Visser, (2012) Measuring UNL Research: The use and interpretation of bibliometric indicators, Lisbon, 29 June 2012 Rousseau, Ronald. "New developments related to the Hirsch index." (2006). Ball, P. (2005). Index aims for fair ranking of scientists. Nature 436(7053), 900-900. Ann Kushmerick (May 3, 2013), Bibliometric Analysis Tools for Research Portfolio Analysis and Management, Manager, Research Evaluation and Bibliometric Data Henk F. Moed, (2011) “New developments in electronic publishing and bibliometrics”, CWTS, Leiden University, Netherlands & Elsevier, Amsterdam, Netherlands Ale Ebrahim, N. (2016). Research Tools: Enhancing visibility and impact of the research. Retrieved from Computer Lab, Level 2, Institute of Graduate Studies, University of Malaya, Kuala Lumpur, Malaysia: http://dx.doi.org/10.6084/m9.figshare.2794237 Ale Ebrahim, N. (2016). Research Tools and Citations. Retrieved from Computer Lab, Level 3, Block B.,APIUM, University of Malaya, Kuala Lumpur, Malaysia: https://dx.doi.org/10.6084/m9.figshare.2274181.v2 MASSIMILIANO CARLONI (2014) THE NEW JCR, Journal Citation Reports on INCITES, Strategic Business Manager, Thomson Reuters Akhavan, P., Ale Ebrahim, N., Fetrati, M. A., & Pezeshkan, A. (2016). Major trends in knowledge management research: a bibliometric study. Scientometrics 1-16. doi:10.1007/s11192-016-1938-x Nagaratnam, S., Ale Ebrahim, N., & Habibullah, M. S. (2016). A Bibliometric Analysis on "Fertility Rate" Research Trends. International Journal of Professional Business Review, 1(1), 1-14. doi:10.5281/zenodo.58318
15. Henk F. Moed, (2011) “New developments in electronic publishing and bibliometrics”, CWTS, Leiden University, Netherlands & Elsevier, Amsterdam, Nethe
16. How To Get Your Article Published: From title to references, From
submission to revision Presented by: Anthony Newman, Elsevier, Amsterdam, Birmingham, Nov. 2010
17. Rachel Mangan, (2010), WEB OF KNOWLEDGE UPDATE TRAINING, MIMAS 18. 19.
20. 21. 22. 23. 24. 25.
Shakiba, M., Ale Ebrahim, N., Danaee, M., Bakhtiyari, K., & Sundararajan, E. (2016). A Comprehensive Comparison of Educational Growth within Four Different Developing Countries between 1990 and 2012. Revista de Gestão e Secretariado, 6(3), 152-174. doi:10.7769/gesec.v6i3.486 Martín-Martín, A., Orduna-Malea, E., Ayllón, J. M., & López-Cózar, E. D. (2016). The counting house, measuring those who count: Presence of Bibliometrics, Scientometrics, Informetrics, Webometrics and Altmetrics in Google Scholar Citations, ResearcherID, ResearchGate, Mendeley, & Twitter. EC3 Reseach Group: Evaluación de la Ciencia y de la Comunicación Científica Universidad de Granada and Universidad Politécnica de Valencia (Spain), In Progress,. doi:10.13140/RG.2.1.4814.4402 Müller, A. M., Ansari, P., Ale Ebrahim, N., & Khoo, S. (2015). Physical Activity and Aging Research: A Bibliometric Analysis. Journal Of Aging And Physical Activity In Press. doi:10.1123/japa.20150188 Maghami, M., Navabi Asl, S., Rezadad, M. i., Ale Ebrahim, N., & Gomes, C. (2015). Qualitative and Quantitative Analysis of Solar hydrogen Generation Literature From 2001 to 2014. Scientometrics 105(2), 759-771. : http://dx.doi.org/10.1007/s11192-015-1730-3 Ale Ebrahim, N. (2016). Academic social networking (ResearchGate & Academia) and the research impact. Retrieved from Research Support Unit, Centre for Research Services, Institute of Research Management and Monitoring (IPPP)”, University of Malaya: https://dx.doi.org/10.6084/m9.figshare.3464156.v1 Ale Ebrahim, N. (2016). Publication’s e-mail marketing procedure. Retrieved from Research Support Unit, Centre for Research Services, Institute of Research Management and Monitoring (IPPP)”, University of Malaya: https://dx.doi.org/10.6084/m9.figshare.3479069.v1 Shakiba, M., Zavvari, A., Ale Ebrahim, N., & Singh, M. J. (2016). Evaluating the academic trend of RFID technology based on SCI and SSCI publications from 2001 to 2014. Scientometrics First Online: 08 August 2016, 1-24. http://dx.doi.org/10.1007/s11192-016-2095-y Farghadani, R., Haerian, B. S., Ale Ebrahim, N., & Muniandy, S. (2016). 35Year Research History of Cytotoxicity and Cancer: a Quantitative and Qualitative Analysis. Asian Pac J Cancer Prev, 17(7), 3139-3145. doi:10.14456/apjcp.2016.66
©2016-2017 Nader Ale Ebrahim