Neurosurgery in Canada.
D002170:Canada; D003695:Delivery of Health Care; D004503:Education, Medical, Graduate / Q000266:history; D049673:History, 20th Century; D009493:Neurosurgery / Q000193:education / Q000266:history*; D012955:Societies, Medical; D013222:State Medicine / Q000266:history; D000078329:Workforce