SMA explained: The rare genetic condition affecting Jesy Nelson's twins

Jesy Nelson, who gave birth to twins Ocean and Story prematurely in May, said the girls were diagnosed with type 1 spinal ...
What to Expect on MSN

Here's what a perinatologist does and why some pregnant moms need to see one

Also called a maternal fetal medicine specialist, a perinatologist knows high-risk pregnancies inside and out.