Historical development of procaine from cocaine.
D000766:Anesthesia, Dental / Q000266:history*; D000779:Anesthetics, Local / Q000266:history*; D055598:Chemical Phenomena; D002621:Chemistry; D003042:Cocaine / Q000266:history*; D011343:Procaine / Q000138:chemical synthesis* / Q000266:history*
D000779:Anesthetics, Local; D011343:Procaine; D003042:Cocaine