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Stiehm ER, Johnston RB Jr.Stiehm ER, et al. Among authors: johnston rb jr.Pediatr Res. 2005 Mar;57(3):458-67. doi: 10.1203/01.PDR.0000151692.05422.4C. Epub 2004 Dec 20.Pediatr Res. 2005.PMID: 15611343Review.