Reproducibility of Plasma Steroid Hormones, Prolactin, and Insulin-like Growth Factor Levels among Premenopausal Women over a 2- to 3-Year Period

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Reproducibility of plasma and urinary sex hormone levels in premenopausal women over a one-year period.

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Reliability of serum prolactin measurements in women.

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Radioimmunoassay of Plasma Estrogens: Use of Polymerized Antibodies

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