The complex surgery took more than 24 hours to complete.
Ten-month-old conjoined twins Abigail and Micaela were born fused at the head from a condition that occurs in one out of every 2.5 million births.
Twins born joined at the head have gone home to North Carolina, four months after surgery in Philadelphia separated them.
Stanford has performed the fifth operation involving conjoined twins. The two-year-old girls from the Sacramento area were successfully separated in a 17 hour operation
1-year-olds Jaden and Anais McDonald from Illinois were conjoined at the head, sharing brain tissue nearly an inch in diameter.
One of the formerly conjoined twin girls separated in a 26-hour surgery at Texas Children's Hospital was discharged Friday from the hospital, just in time for Mother's Day.