Clinical pathology in America, 1865-1915: Philadelphia as a test case.
D019411:Clinical Laboratory Techniques; D049672:History, 19th Century; D049673:History, 20th Century; D006761:Hospitals / Q000266:history; D006785:Hospitals, University / Q000266:history; D010338:Pathology, Clinical / Q000266:history*; D010414:Pennsylvania