Yigiter, Alin Basgul Effect of smoking on pregnancy-associated plasma protein A, free beta-human chorionic gonadotropin, and nuchal translucency in the first trimester of pregnancy. [electronic resource] - Advances in therapy - 131-8 p. digital Publication Type: Journal Article ISSN: 0741-238X Standard No.: 10.1007/BF02850353 doi Subjects--Topical Terms: AdultChorionic Gonadotropin, beta Subunit, Human--bloodDose-Response Relationship, DrugFemaleGravidityHumansMaternal AgeNuchal Translucency MeasurementParityPregnancyPregnancy ComplicationsPregnancy Trimester, FirstPregnancy-Associated Plasma Protein-A--analysisProspective StudiesSmoking--adverse effects