Comparisons and contrasts between the early arsphenamine and early antibiotic periods.
D000900:Anti-Bacterial Agents / Q000266:history*; D001153:Arsphenamine / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century; D010600:Pharmacology / Q000266:history*
D000900:Anti-Bacterial Agents; D001153:Arsphenamine