Siddhartha Mukherjee (born 21 July 1970) is an Indian-American physician, biologist, oncologist, and author. Photo By Moody College of Communication from Austin, USA - This file has been extracted from another file: Siddhartha Mukherjee (34273728645).jpg, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=80810851