Bullingham, R Perineural injection of morphine fails to relieve postoperative pain in humans. [electronic resource] - Anesthesia and analgesia Feb 1983 - 164-7 p. digital Publication Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't ISSN: 0003-2999 Subjects--Topical Terms: AdolescentAdultAgedAnesthesia, GeneralHallux Valgus--surgeryHumansMiddle AgedMorphine--administration & dosageNerve BlockPain, Postoperative--drug therapy