Dr. John Marshall

John Marshall is a medical oncologist and a professor at Georgetown University, and he is an internationally recognized expert in gastrointestinal cancers and the development of new treatments for cancer. He has been outspoken on controversial issues in cancer research, including his criticism of the dominance and success of breast cancer advocacy and research at the unfortunate expense of other specialties.

John Marshall is a medical oncologist and a professor at Georgetown University, and he is an internationally recognized expert in gastrointestinal cancers and the development of new treatments for cancer. He has been outspoken on controversial issues in cancer research, including his criticism of the dominance and success of breast cancer advocacy and research at the unfortunate expense of other specialties. See less