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Fertil Steril. 1982 Dec;38(6):701-4.
Evidence for the involvement of beta-endorphin in the human menstrual cycle.
Vrbicky KW, Baumstark JS, Wells IC, Hilgers TW, Kable WT, Elias CJ
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Fertil Steril. 1982 Dec;38(6):701-4.
Vrbicky KW, Baumstark JS, Wells IC, Hilgers TW, Kable WT, Elias CJ