Coca leaf and local anesthesia.
Dagnino
Jorge
J
D000772:Anesthesia, Local / Q000266:history*; D000818:Animals; D003041:Coca / Q000737:chemistry*; D049669:History, 16th Century; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D006801:Humans; D018515:Plant Leaves