The babies are expected to stay in hospital for two to four weeks A pair of US twin sisters who were born holding hands were breathing on their own after being removed from a ventilator, their mother has said. Jillian and Jenna Thistlethwaite shared an amniotic sac and placenta, a rare condition known as monoamniotic birth. "They're already best friends," said their mother, Sarah Thistlethwaite. T