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Peruvian doctor Miguel Rubio watches as Milagros Cerron plays with her foot during a rehabilitation therapy session in a municipal hospital in Lima, Peru on Friday, Jan. 20, 2006.

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Peruvian doctor Luis Rubio play with baby Milagros Cerron, nine-month-old, in a public hospital in Lima, Peru in this Feb. 4, 2005 file photo.

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Shambu, feeds his two-year-old daughter Lakshmi before she was discharged from the Sparsha Hospital in Bangalore, India, Saturday, Dec. 15, 2007. Lakshmi, an Indian girl born with four arms and four legs was discharged from the hospital after a successful operation where doctors removed her extra limbs. (AP Photo/Aijaz Rahi)

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 Lakshmi looks on at the Sparsh Hospital in Bangalore, India, Monday, Nov. 5, 2007. Doctors began operating Tuesday, Nov. 6, 2007, on the two-year-old girl born with four arms and four legs, in an extensive surgery that they hope will leave the girl with a normal anatomy, a hospital official said.(AP Photo)

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Undated handout photo released Sunday Sept.18, 2011 by British charity Facing the World of conjoined twins Rital and Ritag Gaboura (left to right not given) after they were successfully separated at London's Great Ormond Street Hospital for Children.