ida seigal from our sister station in new york city has the introductions. >> reporter: decked out in their own made their public debut in front of flashing cameras and fawning hospital staff. the two girls have been separated from each other for one full week after spending their entire lives as conjoined twins. >> translator: when i saw them for the first time, it was incredible. >> reporter: their parents are from the dominican republic and they call the surgery a miracle. the girls were born conjoined at the tailbone. they shared a spinal cord. they needed months of preparation at the children's hospital before they could be separated. >> in this case, it was a little more challenging because the spinal cords came together as a "u" and were connected. >> reporter: the final surgery was so long, it had to be broken up in parts. the girls went into the operating room at 6:00 in the morning. they didn't come out until 4:00 the next morning for a total of 22 hours. >> translator: i knew it was going to be okay because we were given the opportunity to have >> reporter: the girls' fathe