Smoking in pregnancy.
D005260:Female; D006266:Health Education; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000517:prevention & control; D008880:Midwifery; D011247:Pregnancy; D011248:Pregnancy Complications / Q000517:prevention & control; D012907:Smoking