title: Special Issue: Short cervix and the risk of preterm birth. Introduction.
authors: Joan
authors: J
authors: Slager
authors: Sandra
authors: S
authors: Lynne
mesh_terms: D002584:Cervix Uteri; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D011247:Pregnancy; D011248:Pregnancy Complications; D047928:Premature Birth / Q000209:etiology*; D012307:Risk Factors