De los Rios, E [Preoperative infiltration in proctologic surgery]. [electronic resource] - Revista espanola de las enfermedades del aparato digestivo Jun 1971 - 485-8 p. digital Publication Type: Journal Article ISSN: 0034-9437 Subjects--Topical Terms: HemostasisHumansInjections, SubcutaneousMethodsNorepinephrine--administration & dosageRectal Diseases--surgery