Who is WHO?

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Brock Chisholm CC CBE MC ED (18 May 1896 – 4 February 1971) was a Canadian psychiatrist, medical practitioner, World War I veteran, and the first director-general of the World Health Organization(WHO). He was the 13th Canadian Surgeon Generaland the recipient of numerous accolades, including Order of Canada, Order of the British Empire, Military Cross, and Efficiency Decoration.

https://en.m.wikipedia.org/wiki/Brock_Chisholm