»Retraction—Ileal-lymphoid-nodular hyperplasia, non-specific colitis, and pervasive developmental disorder in children«. The Lancet. 375 (9713): 445. Februar 2010. doi:10.1016/S0140-6736(10)60175-4. PMID20137807.
Godlee F; Smith J; Marcovitch H (2011). »Wakefield's article linking MMR vaccine and autism was fraudulent«. BMJ. 342 (jan05 1): c7452–c7452. doi:10.1136/bmj.c7452. PMID21209060.
»Retraction—Ileal-lymphoid-nodular hyperplasia, non-specific colitis, and pervasive developmental disorder in children«. The Lancet. 375 (9713): 445. Februar 2010. doi:10.1016/S0140-6736(10)60175-4. PMID20137807.
Godlee F; Smith J; Marcovitch H (2011). »Wakefield's article linking MMR vaccine and autism was fraudulent«. BMJ. 342 (jan05 1): c7452–c7452. doi:10.1136/bmj.c7452. PMID21209060.