Main, D M Risk scoring for preterm labor: where do we go from here? [electronic resource] - American journal of obstetrics and gynecology Oct 1987 - 789-93 p. digital Publication Type: Journal Article ISSN: 0002-9378 Standard No.: 10.1016/s0002-9378(87)80056-x doi Subjects--Topical Terms: BehaviorFemaleHumansInfant, Low Birth WeightInfant, NewbornMethodsMonitoring, PhysiologicObstetric Labor, Premature--diagnosisParityPregnancyRisk FactorsSocioeconomic FactorsUterine Contraction