Yet another study has debunked the notion that vaccines cause autism. Late last month, a committee of 18 highly respected doctors, professors, legal experts and epidemiologists empanelled by the Institute of Medicine (IOM) reviewed more than 1,000 peer-reviewed studies and articles and found “no links between immunization and . . . autism.” As the Chairwoman of the panel, Dr. Ellen Wright Clayton, put it, “The M.M.R. [Measles-Mumps-Rubella] vaccine doesn’t cause autism, and the evidence is overwhelming that it doesn’t.”