<Li> The first closed incubator for newborns was used . </Li> <Li> The nursing school was disbanded in 1945 and converted into an affiliate training center . </Li> <Li> A six - story research building next to the hospital was dedicated in 1954 . </Li> <Li> In 1962 under Dr. C. Everett Koop the first neonatal intensive care unit (NICU) in the nation was opened, along with a new neonatal surgical unit . </Li>

When was the children's hospital of philadelphia built