title: [Comparative study of extradural fentanyl combined with etidocaine and bupivacaine in hip surgery].
mesh_terms: D000083:Acetanilides; D000328:Adult; D000368:Aged; D000767:Anesthesia, Epidural; D002045:Bupivacaine; D005041:Etidocaine; D005260:Female; D005283:Fentanyl; D006620:Hip Fractures / Q000601:surgery*; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged
chemical_list: D000083:Acetanilides; D005041:Etidocaine; D005283:Fentanyl; D002045:Bupivacaine
vernacular_title: Estudio comparativo del fentanil por vía extradural asociado con etidocaína o bupivacaína en cirugía de la cadera.