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Freed GL, Dunham, KM, Sitalski, KE, Jones, MD, Jr., JcGuinness, GA, Research Advisory Committee of the American Board of Pediatrics Pediatrics. 2009. 123 Suppl 1: S38-41
Swanson, WS, Harris MC, Master C, Gallagher, PR, mauro AE, Ludwig S
Ambulatory Pediatrics: The Official Journal of the Ambulatory Pediatric Association. 2005. 5(4): 216-20
Freed GL, Dunham KM, Switalski KE, Jones MD Jr, McGuinness GA; Research Advisory Committee of the American Board of Pediatrics. Pediatrics. 2009. 123 Suppl 1:S44-9.