Ray Farquharson
Canadian doctor, university professor and medical researcher (1897-1965) · Canada · On the map · Doctors · Died at 67
Ray Fletcher Farquharson was a Canadian medical doctor, university professor, and medical researcher. Born in Claude, Ontario, he attended and taught at the University of Toronto for most of his life, and was trained and employed at Toronto General Hospital.
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A typical day, 30 days to 24 September 2026
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With co-researcher Arthur Squires, Farquharson was responsible for the discovery of the Farquharson phenomenon, an important principle of endocrinology, which is that administering external hormones suppresses the natural production of that hormone.