Practice guidelines for the treatment of Hodgkin Lymphoma from the National Comprehensive Cancer Network. The National Comprehensive Cancer Network® (NCCN®), is a not-for-profit alliance of 21 of the world's leading cancer centers, is dedicated to improving the quality and effectiveness of care provided to patients with cancer. World-renowned experts from NCCN Member Institutions diagnose and treat patients with a broad spectrum of cancers and are recognized for dealing with complex, aggressive, or rare cancers. More than 160,000 new patients receive cancer care at NCCN Member Institutions over the course of any year. The oncologists and researchers of NCCN are recognized thought leaders in the treatment of cancers.