Merz, Waltraut M Reference intervals for N-terminal pro-B-type natriuretic peptide in amniotic fluid between 10 and 34 weeks of gestation. [electronic resource] - PloS one 2014 - e114416 p. digital Publication Type: Journal Article ISSN: 1932-6203 Standard No.: 10.1371/journal.pone.0114416 doi Subjects--Topical Terms: AdolescentAdultAmniotic Fluid--chemistryBiomarkers--analysisClinical Chemistry Tests--standardsFeasibility StudiesFemaleHumansMaleMiddle AgedNatriuretic Peptide, Brain--analysisPeptide Fragments--analysisPregnancyReference ValuesYoung Adult