title: [Introduction to the principal theme: "Premature labor"].
mesh_terms: D000013:Congenital Abnormalities / Q000150:complications; D005260:Female; D005313:Fetal Death / Q000517:prevention & control; D005315:Fetal Diseases / Q000150:complications; D006801:Humans; D007752:Obstetric Labor, Premature; D011225:Pre-Eclampsia / Q000150:complications; D011247:Pregnancy
vernacular_title: Introduction