[Premature delivery and its prevention].
D036861:Delivery, Obstetric; D005260:Female; D005602:France; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D008427:Maternal Health Services; D007752:Obstetric Labor, Premature / Q000517:prevention & control*; D011247:Pregnancy; D012959:Socioeconomic Factors
Lettres a l'éditeur.