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6. Natural family planning. New drug-free, device-free birth-control methods everybody's talking about. Aguilar N. Fam Circle; 1978 Mar 01; ():T2. PubMed ID: 12339767 [Abstract] [Full Text] [Related]
7. A second look at natural family planning. Lolarga E. Initiatives Popul; 1983 Mar 01; 7(1):2-12. PubMed ID: 12265791 [Abstract] [Full Text] [Related]
8. Natural contraception using the Billings ovulation method. Attar E, Gokdemirel S, Serdaroglu H, Coskun A. Eur J Contracept Reprod Health Care; 2002 Jun 01; 7(2):96-9. PubMed ID: 12201328 [Abstract] [Full Text] [Related]
13. Natural family planning: folly or fulfillment? Shivanandan M. Marriage Fam Living; 1976 Oct 01; 58(10):2-5. PubMed ID: 12339514 [Abstract] [Full Text] [Related]
16. [The end of IUD marketing in the United States: what does it mean for American women?]. Forrest JD. Contracept Fertil Sex (Paris); 1987 Mar 01; 15(3):291-300. PubMed ID: 12341479 [Abstract] [Full Text] [Related]
17. The impact of type of employment on women's use of prenatal-care services and family planning in urban Cebu, the Philippines. Miles-Doan R, Brewster KL. Stud Fam Plann; 1998 Mar 01; 29(1):69-78. PubMed ID: 9561670 [Abstract] [Full Text] [Related]
19. [Contraception and subsequent fertility. Results of a retrospective study]. Spira N, Spira A, Schwartz D. Contracept Fertil Sex (Paris); 1985 Jan 01; 13(1 Suppl):353-8. PubMed ID: 12280206 [Abstract] [Full Text] [Related]