1. Unsafe injections;Kane;Bull World Health Organ,1998
2. Vaccine risks: real, perceived, and unknown. 4th European Conference on Vaccinology, March 17–19, 1999;Chen;Brighton, United Kingdom,1999
3. Vaccine safety concerns everyone;Clements;Vaccine,1999
4. Vaccine adverse events: causal or coincidental?;Chen;Lancet,1998
5. Ileal-lymphoid-nodular hyperplasia, non-specific colitis, and pervasive developmental disorder in children;Wakefield;Lancet,1998