200 years of American medicine: American medicine in 1776.
D000758:Anesthesia / Q000266:history*; D004165:Diphtheria / Q000266:history*; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D010383:Pellagra / Q000266:history*; D014481:United States; D015004:Yellow Fever / Q000266:history*