title: Thyroid-stimulating hormone in singleton and twin pregnancy: importance of gestational age-specific reference ranges.
authors.forename: James E
authors.initials: JE
authors.lastname: Haddow
authors.forename: Glenn E
authors.initials: GE
authors.lastname: Palomaki
authors.forename: Monica R
authors.initials: MR
authors.lastname: McClain
mesh_terms: D000328:Adult; D015415:Biomarkers / Q000097:blood; D015331:Cohort Studies; D005260:Female; D005865:Gestational Age; D006801:Humans; D008281:Maine; D010298:Parity; D011247:Pregnancy; D011256:Pregnancy Outcome; D011261:Pregnancy Trimester, First; D011262:Pregnancy Trimester, Second; D011272:Pregnancy, Multiple / Q000097:blood*; D012016:Reference Values; D012680:Sensitivity and Specificity; D013781:Texas; D013972:Thyrotropin / Q000097:blood* / Q000378:metabolism; D014427:Twins
chemical_list: D015415:Biomarkers; D013972:Thyrotropin