Groups at risk in low birth weight infants and perinatal mortality.
D001724:Birth Weight; D001824:Body Constitution; D036861:Delivery, Obstetric; D005260:Female; D005313:Fetal Death; D005387:Finland; D005865:Gestational Age; D006801:Humans; D007224:Infant Care; D007226:Infant Mortality; D007231:Infant, Newborn; D007234:Infant, Premature; D008297:Male; D008429:Maternal Welfare; D010809:Physical Fitness; D011247:Pregnancy; D011446:Prospective Studies; D012959:Socioeconomic Factors; D013223:Statistics as Topic