Ernest A. McCulloch MD, FRCP(C)

Recipient of the Canada Gairdner International Award, 1969
"In recognition of their development of the spleen colony technique for measuring the capacity of primitive normal and neoplastic cells to multiply and differentiate in the body. This technique has been applied by them and their colleagues, and by many others, to gain important knowledge of the normal formation of blood cells, the behaviour of leukemic cells and methods of treating leukemia, and other aspects of cell biology."

Toronto, Ontario, Canada