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- W1820690329 abstract "1.1. There is no time in the month at which conception has not occurred in some women. 2.2. The premenstrual week constitutes the relatively “safe period,” or “low-risk period,” when the average chance of pregnancy is less than one in ten. 3.3. A “safe period” or sterile part of the cycle is present in every woman, but is a matter for individual tests, and such successful tests are not yet effectively transferable from animals. Nor has any series been studied that is made up of adequate case records of women with known “safe periods.” 4.4. The height of fertility belongs to the week or ten days following menstruation. 5.5. Fertility is relatively high during menstruation. For the four days that make up 14 per cent of the average menstrual cycle, conceptions from isolated coitus have amounted to 13 per cent. 6.6. Abdominal operations point to ovulation between the fourteenth and nineteenth days from the beginning of the period—rarely there-after. Coitus may possibly free the ovum earlier. 7.7. Alterations in rhythm of tubal contractions and in the tube lining point to passage of the ovum subsequent to the above days and up to the twenty-second day. 8.8. New evidence shows coincidence of maximum sex desire and maximum well-being with minimum chance of conception, in the premenstrual week; also a secondary wave of desire at the time of greatest fertility." @default.
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- W1820690329 date "1927-12-01" @default.
- W1820690329 modified "2023-09-26" @default.
- W1820690329 title "The “safe period” as a birth control measure" @default.
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- W1820690329 doi "https://doi.org/10.1016/s0002-9378(27)90410-4" @default.
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