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Natural family planning.
Smoley BA, Robinson CM. Smoley BA, et al. Am Fam Physician. 2012 Nov 15;86(10):924-8. Am Fam Physician. 2012. PMID: 23157145 Free article. Review.
Author's reply: To PMID 23157145.
Smoley BA. Smoley BA. Am Fam Physician. 2013 Aug 1;88(3):159. Am Fam Physician. 2013. PMID: 24133685 Free article. No abstract available.