Opioid patient controlled analgesia use during the initial experience with the IMPROVE PCA trial: A phase III analgesic trial for hospitalized sickle cell patients with painful episodes

Carlton D. Dampier, Wally R. Smith, Hae Young Kim, Carrie Greene Wager, Margaret C. Bell, Caterina P. Minniti, Jeffrey Keefer, Lewis Hsu, Lakshmanan Krishnamurti, A. Kyle Mack, Donna Mcclish, Sonja M. Mckinlay, Scott T. Miller, Ifeyinwa Osunkwo, Phillip Seaman, Marilyn J. Telen, Debra L. Weiner