Conjoined twins: Allison and Amelia

Conjoined twins: Allison and Amelia

Doctors at The Children's Hospital of Philadelphia work to separate Allison June and Amelia Lee Tucker, on Nov. 7, 2012 in Philadelphia, Penn. It took Dr. Holly L. Hedrick, a pediatric general, thoracic and fetal surgeon, and about 40 other medical professionals approximately seven hours to separate the girls and complete the necessary reconstructive surgery. This is the 21st case of separating conjoined twins for the hospital.

"Like all separations of conjoined twins, this was a very complex surgery, but it went very well and as expected," Hedrick said in a press release.

Credit: The Children's Hospital of Philadelphia