Baird, D D Hormonal profiles of natural conception cycles ending in early, unrecognized pregnancy loss. [electronic resource] - The Journal of clinical endocrinology and metabolism Apr 1991 - 793-800 p. digital Publication Type: Journal Article ISSN: 0021-972X Standard No.: 10.1210/jcem-72-4-793 doi Subjects--Topical Terms: Abortion, Spontaneous--urineChorionic Gonadotropin--urineEmbryo ImplantationEstrone--analogs & derivativesFemaleHormones--urineHumansOsmolar ConcentrationPregnancy--urinePregnancy Trimester, FirstPregnanediol--analogs & derivatives