Angelica Sabuco, 2, listens to her mom Ginady at Lucile Packard Children's Hospital Monday, April 30, 2012 in Palo Alto, Calif. Angelica and her twin sister Angelina were born joined in the chest and abdomen. They were separated by doctors at the Palo Alto hospital during an intricate 10-hour procedure in December 2011. (AP Photo/Marcio Jose Sanchez)