Surgery and surgical travel groups.
D005060:Europe; D013502:General Surgery / Q000266:history*; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D009938:Organizations; D012657:Self-Help Groups; D012955:Societies, Medical; D014195:Travel; D006113:United Kingdom; D014481:United States