Affiliations: Department of Pediatrics, Division of Critical Care Medicine, Hôpital Sainte-Justine, Université de Montréal, Montréal, Canada
Note: [] Address for correspondence: François Proulx, Pediatric Intensive Care Unit, Ste-Justine Hospital, University of Montreal, Montreal, Canada. Tel.: +1 514 345 4931; Fax: +1 514 345 7731; E-mail: fproulx_01@yahoo.ca