Autism advocacy groups are reacting after Mattel announced a new Barbie doll, the first with autism, on Sunday.

In September, President Donald Trump advised pregnant women not to take Tylenol.

President Donald Trump claimed Monday that acetaminophen, the main ingredient in Tylenol, is linked to autism, despite experts warning that studies on this question are mixed, and no publicly released ...

ABC News medical contributor Dr. Alok Patel breaks down the new study that found Tylenol use during pregnancy is not linked ...