Smoking in pregnancy.
D000022:Abortion, Spontaneous / Q000209:etiology; D000037:Abruptio Placentae / Q000209:etiology; D001724:Birth Weight; D000013:Congenital Abnormalities / Q000209:etiology; D005260:Female; D007226:Infant Mortality; D011225:Pre-Eclampsia; D011247:Pregnancy; D012907:Smoking / Q000150:complications