Changing mortality rates with perinatal intensive care and regionalization.
D001724:Birth Weight; D002662:Child Health Services / Q000458:organization & administration*; D005260:Female; D005313:Fetal Death / Q000453:epidemiology; D005865:Gestational Age; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D008427:Maternal Health Services / Q000458:organization & administration; D011247:Pregnancy; D011792:Quebec; D012040:Regional Health Planning