BMJ 2001;322:460-463 ( 24 February )

Mumps, measles, and rubella vaccine and the incidence of autism recorded by general practitioners: a time trend analysis

James A Kaye, epidemiologistMaria del Mar Melero-Montes, epidemiologistHershel Jick, associate professor of medicine

Boston Collaborative Drug Surveillance Program, Boston University School of Medicine, 11 Muzzey Street, Lexington, MA 02421, USA

Correspondence to: J A Kaye