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. 1993 Nov 20;307(6915):1359-60.
doi: 10.1136/bmj.307.6915.1359-c.

Natural family planning. Low failure rate with symptothermal method

C Pyper

Natural family planning. Low failure rate with symptothermal method

C Pyper. BMJ. .
No abstract available

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References

    1. BMJ. 1993 Sep 18;307(6906):723-6 - PubMed
    1. Int J Fertil. 1988;33 Suppl:48-51 - PubMed