( June 20, 2024, 8:55 AM EDT) -- NEW YORK — Defendants facing lawsuits by parents in the acetaminophen autism spectrum disorder-attention deficit hyperactivity disorder (ASD-ADHD) multidistrict litigation who allege that prenatal exposure to acetaminophen XE "acetaminophen" causes autism or ADHD say the parents’ arguments for allowing a new expert to testify are misplaced....