LA doctors complete surgery on conjoined twins Dallas surgeons for Egyptian boys follow case closely 08/06/2002 Associated Press LOS ANGELES - Surgeons separated 1-year-old Guatemalan twins joined at the head, a risky procedure that took about 20 hours to complete, a doctor told NBC's Today show Tuesday. Dr. Houman Hemmati, who assisted in the surgery, said the separation appeared to be successful. "Everyone had goosebumps at the end of the procedure," Hemmati told the program. "People were cheering, people were clapping, people were crying." AP About 8 a.m. Monday, surgeons began operating on conjoined twins Maria de Jesus Quiej-Alvarez...