EPO and periventricular leukomalacia: When the patients were divided into two groups, as periventricular leukomalacia (PVL) and non-PVL group, the PVL group showed better outcomes in the pUCB group than in the EPO group on the GMPM, while the non-PVL group had better outcomes in the pUCB group on the BSID-II Mental scale (Supporting Information Table S11).