"SIDS." Centers for Disease Control and Prevention. Web. 6 May 2011.<http://www.cdc.gov/SIDS/>.
"The Changing Concept of Sudden Infant Death Syndrome: Diagnostic Coding Shifts, Controversies Regarding the Sleeping Environment, and New Variables to Consider in Reducing Risk -- Task Force on Sudden Infant Death Syndrome 116 (5): 1245 -- AAP Policy." AAP Policy - Journal of the American Academy of Pediatrics. Web. 6 May 2011. <http://aappolicy.aappublications.org/cgi/content/full/pediatrics;116/5/1245>.