A Dronkert

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The chromatographic separation of gonadotropin-inhibiting substance in the extract obtained from adult male urine according to the method of Johnsen was attempted on a Sephadex G-100 column. The ovulation assay was employed to detect the inhibitor in the fractions using female mice, 19-20 days old, which received PMS and HCG to obtain a minimum constant(More)
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