PDF] A fixed formula to define the fertile window of the menstrual

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PDF) The timing of the 'fertile window' in the menstrual cycle: Day specific estimates from a prospective study

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Findings from a mobile application–based cohort are consistent with established knowledge of the menstrual cycle, fertile window, and conception - ScienceDirect

Menstrual cycle

A fixed formula to define the fertile window of the menstrual cycle as the basis of a simple method of natural family planning - ScienceDirect

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Menstrual Cycle - A Reproductive Phase In Humans

A fixed formula to define the fertile window of the menstrual cycle as the basis of a simple method of Natural family planning

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The high fertility cycle - ScienceDirect

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Standardized protocols for characterizing women's fertility: A data-driven approach - ScienceDirect