In many ways, pediatricians do know more than parents. When your doctor says your newborn needs to ride in a rear-facing car seat, don’t argue. When he says your 2-month-old with a 105-degree fever needs to get to the doctor’s office — and fast — you’d better listen.

But there are far more areas that are gray and have no science, or not very good science, to back them up, says our panel of pediatric experts. They say that sometimes, this means your pediatrician is giving you his or her opinion, not medical fact.

Full story: When it’s OK to question your pediatrician’s advice