Knorr and Filehne in Erlangen.
D000082:Acetaminophen / Q000266:history; D000632:Aminopyrine / Q000266:history*; D000983:Antipyrine / Q000266:history*; D001241:Aspirin / Q000266:history; D005858:Germany; D049672:History, 19th Century; D011804:Quinolines / Q000266:history
D011804:Quinolines; D000632:Aminopyrine; D000082:Acetaminophen; D001241:Aspirin; D000983:Antipyrine