TY - SER AU - Naz, Shagufta AU - Sharif, Saima AU - Ibrahim, Nazia AU - Bashir, Naila TI - Prevalence and Association of Different Levels of Inteliectual Disability with Prenatal, Perinatal, Neonatal and Postnatal Factors KW - Neonatal KW - Perinatal KW - Postnatal ER -