[Anatomo-surgical study of the sphincters of the anus].
D001003:Anal Canal / Q000033:anatomy & histology*; D005401:Fissure in Ano / Q000473:pathology*; D006484:Hemorrhoids / Q000473:pathology*; D006801:Humans; D066298:In Vitro Techniques
Estudio anatomoquirúrgico de los esfínteres del ano.