Parental smoking and perinatal mortality.
D001724:Birth Weight; D004493:Education; D005260:Female; D005313:Fetal Death; D005315:Fetal Diseases; D006801:Humans; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D011295:Prenatal Care; D012907:Smoking; D012924:Social Conditions; D013223:Statistics as Topic