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Angelina Sabuco, 2, far left, sleeps in the arms of her aunt Marites Sabuco as her mom Ginady, center right, and twin sister Angelica, far right, look on at Lucile Packard Children's Hospital Monday, April 30, in Palo Alto, Calif. The twin sisters, who were born joined in the chest and abdomen, were separated by doctors at the Palo Alto hospital during an intricate 10-hour procedure on December 2011. (AP Photo/Marcio Jose Sanchez)

Angelina Sabuco, 2, far left, sleeps in the arms of her aunt Marites Sabuco as her mom Ginady, center right, and twin sister Angelica, far right, look on at Lucile Packard Children's Hospital Monday, April 30, in Palo Alto, Calif. The twin sisters, who were born joined in the chest and abdomen, were separated by doctors at the Palo Alto hospital during an intricate 10-hour procedure on December 2011. (AP Photo/Marcio Jose Sanchez)

Formerly conjoined twins thrive separately

Doctors have given a clean bill of health to two-year-old twins who were born attached at the chest and abdomen and who underwent separation surgery at Stanford University's Lucile Packard Children's Hospital six months ago, May 1.