Dr. Daniel Knowles serves as the David D. Thompson Professor and Chairman of Pathology of the Weill Medical College of Cornell University and as Pathologist-in-Chief at New York-Presbyterian Hospital. Dr. Knowles is internationally recognized for his diagnostic expertise and for his many scholarly accomplishments in hematopathology. He received his MD from the University of Chicago Pritzker School of Medicine, completed residency in pathology at the Columbia University College of Physicians and Surgeons, and received scientific training at the Rockefeller University. Dr. Knowles served as Chief of Surgical Pathology at the Columbia University College of Physicians and Surgeons before coming to the Weill Medical College. He has published more than 275 scientific papers, primarily in hematopathology, is a member of the International Lymphoma Study Group, is the editor of the leading hematopathology textbook, Neoplastic Hematopathology, directs the annual Tutorial on Neoplastic Hematopathology, and is a member of more than 15 Editorial Boards. Dr. Knowles is listed in "Best Doctors in America."