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Direct linkUchiyama, Tokio; Kurosawa, Michiko; Inaba, Yutaka – Journal of Autism and Developmental Disorders, 2007
It has been suggested that the measles, mumps, and rubella vaccine (MMR) is a cause of regressive autism. As MMR was used in Japan only between 1989 and 1993, this time period affords a natural experiment to examine this hypothesis. Data on 904 patients with autism spectrum disorders (ASD) were analyzed. During the period of MMR usage no…
Descriptors: Foreign Countries, Patients, Incidence, Autism
