"Vaccine Nation - Forward.com":
Today, though, more parents are opting out of childhood vaccinations. They feel that the shots are no longer necessary, that they traumatize children, that they cause illness, and most commonly, that they cause autism. Thousands of anecdotal reports and dozens of poorly designed studies link autism to vaccines, but there has been only one seemingly credible study, published in the British medical journal The Lancet in 1998, that found a link. As it turned out, the study had major methodological flaws. Of the 12 children in the study, some turned out to have had developmental disorders before they were vaccinated and most were clients of a lawyer who was preparing to sue vaccine manufacturers. Oops. The Lancet retracted the study in 2004, and 10 of its 12 co-authors disavowed it.