World neurosurgery: a personal history of a surgical specialty.
D001208:Asia; D002170:Canada; D002489:Central America; D003226:Congresses as Topic / Q000266:history; D005060:Europe; D049673:History, 20th Century; D007391:International Cooperation; D009493:Neurosurgery / Q000266:history*; D010820:Physicians / Q000600:supply & distribution; D013020:South America; D014481:United States