Plowchalk, D R Effects of manganese (Mn++) and iron (Fe+++) on magnetic resonance imaging (MRI) characteristics of human placenta and amniotic fluid. [electronic resource] - Physiological chemistry and physics and medical NMR 1987 - 35-41 p. digital Publication Type: Journal Article ISSN: 0748-6642 Subjects--Topical Terms: Amniotic Fluid--analysisChloridesFemaleFerric CompoundsHumansMagnetic Resonance SpectroscopyManganeseManganese CompoundsPlacenta--analysisPregnancy