Fertility Awareness Methods

Fertility awareness based methods for pregnancy prevention

Urrutia RP, Polis CB

Published July 11, 2019 BMJ (Clinical Research Ed.), 366, l4245
DOI 10.1136/bmj.l4245 PMID 31296535

Abstract not indexed.

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PMID 31296535 31296535 DOI 10.1136/bmj.l4245 10.1136/bmj.l4245 Urrutia et al. 2019, Urrutia 2019