Dr. Nelson Jen An Chao, MD, is Professor of Medicine in the Department of Medicine at Duke University School of Medicine. His leadership at Duke includes roles as Chief of the Division of Cell Therapy in the Department of Medicine and Director of the Global Cancer Program at the Duke Global Health Institute. This collection contains 1 oral history interview conducted on March 25, 2021 by Joseph O'Connell as part of the Department of Medicine's Oral History Project. In the interview, Chao discusses his upbringing in Brazil, his reflections on his medical training, his observations on transplant as a complex medical issue, and a description of his work leading the Duke Global Cancer Program. The themes of these interviews include leadership, equity in medicine, cancer treatment, and stem cell transplantation.