title: A conversation with George W. Comstock by Dale P. Sandler.
mesh_terms: D001500:BCG Vaccine / Q000266:history; D004813:Epidemiology / Q000266:history*; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D014481:United States; D014492:United States Public Health Service / Q000266:history*
chemical_list: D001500:BCG Vaccine