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SYDNEY, NEW SOUTH WALES - MAY 17: Premature newborn hand in the Neonatal Intesive Care Unit at Royal Prince Alfred Hospital on May 17, 2015 in Sydney, Australia. The Neonatal care unit at Westmead Children's Hospital specialized in specialy care for newborns. (Photo by Jennifer Polixenni Brankin/Getty Images)

SYDNEY, NEW SOUTH WALES - MAY 17:  Premature newborn hand in the Neonatal Intesive Care Unit at Royal Prince Alfred Hospital on May 17, 2015 in Sydney, Australia. The Neonatal care unit at Westmead Children's Hospital specialized in specialy care for newborns. (Photo by Jennifer Polixenni Brankin/Getty Images)