title: [Studies on the current status of risk factors which cause severe handicaps in children].
mesh_terms: D001724:Birth Weight; D002648:Child; D003730:Dental Care for Persons with Disabilities; D006233:Persons with Disabilities / Q000145:classification; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000453:epidemiology; D007744:Obstetric Labor Complications / Q000453:epidemiology; D011247:Pregnancy; D011248:Pregnancy Complications / Q000453:epidemiology