Maria Gisela Hiciano, holds her daughter Rebeca in her arms as her father Franklin Martinez, caresses her at the CARE clinic in Santo Domingo, Dominican Republic, Tuesday, Jan. 27, 2004. Rebeca, a Dominican infant born with a second partially formed head is scheduled to undergo a risky operation that will take an estimated 13 hours for a team of international doctors and nurses on Friday. (AP Photo/Walter Astrada)

Maria Gisela Hiciano, caresses her daughter Rebeca at the CARE clinic in Santo Domingo, Dominican Republic, Tuesday, Jan. 27, 2004. Rebeca, a Dominican infant born with a second partially formed head is scheduled to undergo a risky operation that will take an estimated 13 hours for a team of international doctors and nurses on Friday. (AP Photo/Walter Astrada)

Seven-week-old Dominican girl Rebeca Martinez, born with one of the world's rarest birth defects, died February 7, 2004, hours after undergoing a delicate operation to remove an undeveloped second head, the clinic treating her said. A team of international doctors said Friday night that they had successfully completed a day-long operation to remove the second head. But doctors had cautioned that the baby would face a series of risks as she recovered, such as infection or hemorrhaging. Rebeca is pictured in this file photo taken on December 10, 2003, the day of her birth. EDITORIAL USE ONLY REUTERS/Cure International/Handout