PROCTOLOGY IN THE UNITED STATES; A SHORT HISTORY.
D003107:Colorectal Surgery; D006664:History; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008511:Medicine; D014481:United States
HISTORY; HISTORY OF MEDICINE, 19TH CENT.; HISTORY OF MEDICINE, 20TH CENT.; PROCTOLOGY; UNITED STATES