Formerly conjoined twins thriving after rare, complex surgery separated their brains

Erin and Abby Delaney's parents are grateful their twin daughters are thriving. Born as conjoined twins, their condition was among the rarest of the rare. Now, doctors are providing an update on the girls' extraordinary journey."They're just growing and changing and amazing little people and I can say they are really my heroes for what they have been through," Heather Delaney told CBS News.The sisters were born joined at the head, and even rarer, totally fused with their connection deep into the