"professor, endocrinologist, medical researcher" . . "Friesen, Henry"@en . . "Henry George Friesen"@en . . "Henry George Friesen, CC OM FRSC (born July 31, 1934) is a Canadian endocrinologist, a distinguished professor emeritus of the University of Manitoba and the discoverer of human prolactin, a hormone which stimulates lactation in mammary glands.Born in Morden, Manitoba, he obtained a Bachelor of Science in medicine and a medical degree from the University of Manitoba in 1958."@en . . . . "1934Z"^^ . . "1934-07-31Z"^^ .