Presidential address.
Hirsch
J F
JF
D002648:Child; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049691:History, Medieval; D006776:Hospitals, Pediatric / Q000266:history* / Q000458:organization & administration; D006782:Hospitals, Special / Q000266:history*; D006801:Humans; D009493:Neurosurgery / Q000266:history*; D010372:Pediatrics / Q000266:history*