Landmarks in medical progress: 1868-1968.
D000900:Anti-Bacterial Agents; D003214:Conditioning, Classical; D049672:History, 19th Century; D049673:History, 20th Century; D011600:Psychopharmacology; D011859:Radiography / Q000266:history; D013223:Statistics as Topic
D000900:Anti-Bacterial Agents