New study of twins suggests that environmental factors, including conditions in the womb, may be at least as important as genes in causing autism

From The NY Times:A new study of twins suggests that environmental factors, including conditions in the womb, may be at least as important as genes in causing autism. The researchers did not say which environmental influences might be at work. But other experts said the new study, released online on July 4, marked an important shift in thinking about the causes of autism, which is now thought to