The length of the human fertile period

James, W.H.

Population Studies 32(1): 187-194

1978


ISSN/ISBN: 0032-4728
PMID: 22091940
DOI: 10.1080/00324728.1978.10412800
Document Number: 436430
Abstract Estimates of the. length of the human fertile period (that interval within the menstrual cycle during which insemination is associated with a non-zero probability of conception) are necessarily indirect. Moreover, those estimates do not seem in close agreement with one another. For instance, it has been suggested that:

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