John Janvier Black (1837-1909): an ornament to his profession.
D003691:Delaware; D005197:Famous Persons; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007388:Internal Medicine / Q000266:history; D009938:Organizations; D014376:Tuberculosis / Q000266:history*; D014481:United States