BMJ 2001;322:460-463 ( 24 February ) http://www.bmj.com/cgi/content/abstract/322/7284/460?ijkey=BWvr6U22JWPY.
Papers

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

James A Kaye, epidemiologist,  Maria del Mar Melero-Montes, epidemiologist,  Hershel 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 jkaye@narsil.com

Replies http://www.bmj.com/cgi/content/full/323/7305/163