No abstract available
MeSH terms
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Abortion, Threatened / blood*
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Chorionic Gonadotropin / blood*
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Estradiol / blood*
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Female
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Humans
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Pregnancy
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Pregnancy Trimester, First
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Progesterone / blood*
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Prognosis
Substances
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Chorionic Gonadotropin
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Progesterone
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Estradiol