the cameron is not duke, but john.

Dr. John L. Cameron is the Alfred Blalock Distinguished Service Professor of Surgery at The Johns Hopkins University School of Medicine. For nineteen years he served as the Chief of Surgery at The Johns Hopkins Hospital. ...Dr. Cameron has had a long-standing interest in alimentary tract diseases, and specifically in pancreatic cancer. He has operated upon more patients with pancreatic cancer, and done more Whipple resections than any other surgeon in the world.

http://www.hopkinsmedicine.org/surgery/faculty/CameronJ