In 1953, he returned to Canada to run the Clinical Investigation Unit at the
Toronto General Hospital. In 1975, he was lured to
McMaster University Medical School as a professor of medicine until he was made the third Dean of Medicine and Vice President of Health Sciences in 1981. He held this position until 1985 and retired professor emeritus from McMaster in 1986. From 1986 onwards he served as the Executive Director, Medical Affairs of the Canadian Cancer Society, and Vice-President, Research and Education of OCTRF, now named
Cancer Care Ontario. ==Awards==