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To validate the ability of serum kisspeptin-54 to discriminate between first-trimester viable pregnancies and miscarriages.Case-control study.Academic medical centers.Women with confirmed viable intrauterine pregnancy (IUP) at estimated gestational age 6–10 weeks (n = 20), women with confirmed miscarriage (spontaneous abortion [SAB]) at estimated gestational age 6–10 weeks (n = 20), and nonpregnant...
To validate recently characterized curves of hCG rise and fall that are seen in viable and nonviable pregnancies in a population of women who have pregnancies of unknown location. Historical cohort study. University hospital. One thousand two hundred forty-nine women with symptomatic early pregnancies. None. Comparison of observed hCG values to predicted hCG values; time to diagnosis...
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