A critical appraisal of "transfusion strategies for patients in pediatric intensive care units" by Lacroix J, Hebert PC, Hutchison, et al (N Engl J Med 2007; 356:1609-1619). - Adams ES (Pediatric critical care medicine : a journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies, 2009)