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. 1993 Nov 20;307(6915):1359–1360. doi: 10.1136/bmj.307.6915.1359-c

Natural family planning. Low failure rate with symptothermal method.

PMCID: PMC1679421 PMID: 8257910

1359

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

Barbato M., Bertolotti G. Natural methods for fertility control: a prospective study--First Part. Int J Fertil. 1988;33 (Suppl):48–51. [PubMed] [Google Scholar]
Ryder R. E. "Natural family planning": effective birth control supported by the Catholic Church. BMJ. 1993 Sep 18;307(6906):723–726. doi: 10.1136/bmj.307.6906.723. [DOI] [PMC free article] [PubMed] [Google Scholar]

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