• Diffuse Large B Cell Lymphoma
• Hodgkin Lymphoma
• Leukemia
• Non-Hodgkin Lymphoma

Dr. Armitage was in private practice from 1977-79, and in 1979 he returned to the University of Iowa as an Assistant Professor of Medicine, where he was director of the Bone Marrow Transplantation Program. In 1982 he returned to Nebraska as an Associate Professor of Medicine and was promoted in 1987 to Professor of Medicine. He has served as Vice Chairman of the Department of Medicine (1982-90), Chief of the Division of Oncology/Hematology (1986-89), Chairman of the Department of Internal Medicine (1990-99), Dean, College of Medicine (2000-03), and presently holds the position of the Joe Shapiro Professor of Medicine.