Pizzi, Lois J A Prospective Randomized Trial of an Oral Patient-Controlled Analgesia Device Versus Usual Care Following Total Hip Arthroplasty. [electronic resource] - Orthopedic nursing - 37-46 p. digital Publication Type: Journal Article; Randomized Controlled Trial ISSN: 1542-538X Standard No.: 10.1097/NOR.0000000000000624 doi Subjects--Topical Terms: Administration, OralAgedAnalgesia--methodsAnalgesia, Patient-Controlled--methodsArthroplasty, Replacement, Hip--adverse effectsFemaleHumansLength of Stay--statistics & numerical dataMaleMiddle AgedPain Management--methodsPain Measurement--methodsProspective Studies