Allison Institute leadership with the Timkens and Dr. Peter WT Pisters, MD Anderson President. From left: Raghu Kalluri, M.D., Ph.D., director of science and operations; James P. Allison, Ph.D., director; Padmanee Sharma, M.D., Ph.D., director of scientific programs; Sue Timken and husband Ambassador W.R. "Tim" Timken, Jr.; and Pisters.