[Preoperative infiltration in proctologic surgery].
D006487:Hemostasis; D006801:Humans; D007279:Injections, Subcutaneous; D008722:Methods; D009638:Norepinephrine / Q000008:administration & dosage*; D012002:Rectal Diseases / Q000601:surgery*
D009638:Norepinephrine
Infiltración preoperatoria en cirugía proctológica.