XPNPEP3 and neurodevelopmental disorder: The other potential candidate genes identified via our study such as RBX1, XPNPEP3, PMM1, LMF2, SREBF2, RANGAP1, PPP6R22, NUP50, and ST13 have shown a high correlation to neurodevelopmental disorders; however, further clinical or experimental evidence is needed to verify their roles in PMS.