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Wakefield AJ, Pittilo RM, Sim R et al. (abril de 1993). "Evidence of persistent measles virus infection in Crohn's disease". J. Med. Virol.39 (4). pp. 345–53. PMID8492105. doi:10.1002/jmv.1890390415.
Thompson NP, Montgomery SM, Pounder RE, Wakefield AJ (abril de 1995). "Is measles vaccination a risk factor for inflammatory bowel disease?". Lancet345 (8957): 1071–4. PMID7715338. doi:10.1016/s0140-6736(95)90816-1.
Offit, PA; Coffin, SE (8 de decembro de 2003). "Communicating science to the public: MMR vaccine and autism.". Vaccine22 (1): 1–6. PMID14604564. doi:10.1586/14760584.2.1.1.