1Lieberman E,Davidson K,Lee-Parritz A,et al.Changes in fetal position during labor and their association with epidural analgesia.Obstet Gynecol,2005,105:974-982.
6Thomas T. Prediction and assessment of the severity of postoper- ate pain and of pain and satisfaction with management. Pain, 1998,75 (2) : 177.
7Johal HS, Buckley RE, Le IL, etal. A prospective randomized con- tralled trial of a bioresorbable calcium phosphate paste (alpha-BSM) in treatment of displaced intra-articular calcaneal fractures [ J] . J Trauma, 2009, 67 (4) : 875-882.
8Thomas T, Robinson C, Champion D, et al. Prediction and assessment of the severity of post-operative pain and of satisfaction with manage- ment [J] . Pain, 1998, 75 (2-3) : 177-185.
9Thomas T. Prediction and assessment of the severity of postoper-ate pain and of pain and satisfaction with management[J]. Pain, 1998, 75(2): 177.