Princess Margaret Hospital for Children
In 2008 , the state government announced that a new children's hospital would be built to replace Princess Margaret Hospital for Children . Following the completion of the new Perth Children's Hospital in May 2018 , and the opening of its emergency department , Princess Margaret Hospital closed its doors on , and all patients were transferred to the new hospital . 
<triplet> Princess Margaret Hospital for Children <subj> Perth Children's Hospital <obj> replaced by