William G. Kaelin, Jr. talks to a reporter after being awarded the Nobel Prize for Physiology or Medicine, Monday, Oct. 7, 2019, in Boston. Kaelin, who teaches at Harvard, will share the prize with Peter J. Ratcliffe and Gregg L. Semenza for their discoveries of how cells sense and adapt to oxygen availability, the Nobel Committee announced Monday. (AP Photo/Josh Reynolds)

Use Information This content is intended for editorial use only.
For other uses, additional clearances may be required.