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11 ч 44 мин, 1 янв 1968 г. - 1968-Marshall- first prospective study/field trial of an NFP method (BBT method)

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NFP History

ByN. Husk
12 ноя 2017

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11 ч 44 мин, 1 янв 1968 г.
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~ 56 г назад
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