Loyal Davis; Allen Kanavel; surgery, gynecology and obstetrics, and the development of neurosurgery.
D013502:General Surgery / Q000266:history; D006176:Gynecology / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D009493:Neurosurgery / Q000266:history*; D009774:Obstetrics / Q000266:history; D010506:Periodicals as Topic / Q000266:history*; D014481:United States