John L. Marshall, MD, is chief of Hematology and Oncology, a professor of medicine and oncology, and director of the Otto J Ruesch Center for the Cure of Gastrointestinal Cancers at the Georgetown Lombardi Comprehensive Cancer Center
John L. Marshall, MD, chief, Division Of Hematology/Oncology, Georgetown University Hospital Associate Director, clinical research, Lombardi Comprehensive Cancer Center at Georgetown University Hospital, discusses the difference between squamous and adenocarcinoma in esophageal and gastric cancer.
John L. Marshall, MD, from Georgetown University Hospital, on the recent advancements in colorectal cancer.
