[Prevention of premature delivery in twin pregnancies].
D005260:Female; D005313:Fetal Death; D006760:Hospitalization; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D008297:Male; D007752:Obstetric Labor, Premature / Q000517:prevention & control*; D010298:Parity; D011225:Pre-Eclampsia; D011247:Pregnancy; D011272:Pregnancy, Multiple; D011296:Prenatal Diagnosis; D014427:Twins; D014463:Ultrasonography
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