Canada's amazing health history: let's murder the medical officer.
D002170:Canada; D003140:Communicable Disease Control / Q000266:history*; D049669:History, 16th Century; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D009313:National Health Programs / Q000266:history; D011634:Public Health / Q000266:history*; D011635:Public Health Administration / Q000266:history