William Henry Welch and the antivivisection legislation in the District of Columbia, 1896-1900.
D000818:Animals; D004219:District of Columbia; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007883:Legislation, Medical / Q000266:history*; D014824:Vivisection / Q000266:history*