Kenagy Amy, Turner Helen
Pediatric Pain Management Service, Oregon Health and Science University/Doernbecher Children's Hospital, 3181 SW Sam Jackson Park Road, Mail code BTE-2, Portland, OR 97239, USA.
AACN Adv Crit Care. 2007 Oct-Dec;18(4):361-5. doi: 10.1097/01.AACN.0000298628.07535.92.