Delaney Twins, Pre-surgery (IMAGE) Children's Hospital of Philadelphia Caption Erin and Abby Delaney were born craniopagus--conjoined at the tops of their heads. Credit Children's Hospital of Philadelphia Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.