William Drobyski, MD is a Professor in the Departments of Medicine, Pediatrics and Microbiology and Molecular Genetics. He completed his medical school, internal medicine residency, and hematology fellowship training at the University of Rochester. He obtained his fellowship training in bone marrow transplantation at the Medical College of Wisconsin before joining the faculty in 1990. His primary clinical interests are in the areas of allogeneic hematopoietic stem cell transplantation and immunotherapy. He also has a basic research laboratory that focuses on the pathophysiology of graft versus host disease and has been continuously funded by the National Institutes of Health (NIH) for the past 22 years. Dr. Drobyski has also served on numerous NIH study sections and is currently on the editorial board of the journal Biology of Blood and Marrow Transplantation.