Affiliation: | (1) Department of Anesthesia, Duke Children's Hospital, P. O. Box 3046, Duke University Medical Center, Durham, NC 27710–0001, USA e-mail: melio001@mc.duke.edu Tel.: + 1-9 19-6 81 64 03 Fax: + 1-9 19-6 18 83 57, US;(2) Department of Pediatrics, University of Michigan Medical Center, Ann Arbor, Mich., USA, US;(3) Department of Pediatrics, Duke Children's Hospital, Duke University Medical Center, Durham, NC 27710–0001, USA, US |