[Historial evolution of regional anesthesia].
D000765:Anesthesia, Conduction / Q000266:history*; D000777:Anesthetics / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century; D049691:History, Medieval; D006801:Humans
D000777:Anesthetics
Evolución histoórica de la anestesia regional.