Similar articles

• [Conclusions and critical remarks on natural family planning].

  Beck L, Freundl G. Beck L, et al. Gynakologe. 1985 Dec;18(4):234-6. Gynakologe. 1985. PMID: 4093038 German. No abstract available.
• [Determining infertile days in the female cycle. Initial test results of technical aids for methods of natural family planning].

  Döring GK, Daucher HK. Döring GK, et al. Fortschr Med. 1986 Dec 11;104(46):941-2. Fortschr Med. 1986. PMID: 3817704 German. No abstract available.
• New low- and high-tech calendar methods of family planning.

  Fehring RJ. Fehring RJ. J Midwifery Womens Health. 2005 Jan-Feb;50(1):31-8. doi: 10.1016/j.jmwh.2004.07.001. J Midwifery Womens Health. 2005. PMID: 15637512 Review.
• The Billings method of family planning: an assessment.

  Betts K. Betts K. Stud Fam Plann. 1984 Nov-Dec;15(6 Pt 1):253-66. Stud Fam Plann. 1984. PMID: 6515667
• Natural family planning.

  Geerling JH. Geerling JH. Am Fam Physician. 1995 Nov 1;52(6):1749-56, 1759-60. Am Fam Physician. 1995. PMID: 7484685 Review.