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1980-01-01

The Occurrence of Ovulation at the Midcycle

Hilgers TW, Prebil AM, Hilgers SK, Daly KD

Source:

https://www.usccb.org/issues-and-action/marriage-and-family/natural-family-planning/what-is-nfp/science/upload/international-review-nfp-1980-hilgers-midcycle-ovulation.pdf

PubMed:

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