[Happy birthday, anaesthesia!].
D000758:Anesthesia / Q000266:history*; D001900:Boston; D005858:Germany; D006293:Health Promotion / Q000458:organization & administration / Q000639:trends; D049672:History, 19th Century; D049673:History, 20th Century; D049674:History, 21st Century; D006693:Holidays; D038622:Internationality; D012955:Societies, Medical / Q000266:history* / Q000458:organization & administration