1. Kennedy K!, Rivera R, McNeilly AS: Consensus statement on the use of breastfeeding as a family planning method. Contraception1989; 39:477-491.
2.
2. Short R: The biological basis for the contraceptive effects of breast feeding. Int J Gynaecol Obstet1987; 25 Suppl:207-217.
3.
3. World Health Organization (WHO) Task Force on Oral Contraceptives, Special Programme of Research, Development, and Research Training in Human Reproduction: Effects of hormonal contraceptives on breast milk composition and infant growth. Stud Fam Plann1988; 19:361-369.
4.
4. Gupta AN, Mathur VS, Garg SK: Effect of oral contraceptives on quantity and quality of milk secretion in human beings. Ind J Med Res1974; 62:964-970.
5.
5. Moggia AV, Harris GS, Dunson TR, Diaz R, Moggia MS, Rerrer MA, et al: A comparative study of a progestin-only oral contraceptive versus non-hormonal methods in lactating women in Buenos Aires, Argentina. Contraception1991; 44:31-43.
6.
6. World Health Organization (WHO) Task Force on Oral Contraceptives, Special Programme of Research, Development, and Research Training in Human Reproduction: Effects of hormonal contraceptives on breast milk composition and infant growth. Contraception1984; 30:505-522.
7.
7. McCann MF, Moggia AV, Higgins JE, Potts M, Becker C: The effects of a progestin-only oral contraceptive (levonorgestrel 0.03 mg) on breast-feeding. Contraception1989; 40:635-648.
8.
8. World Health Organization (WHO) Task Force for Epidemiological Research on Reproductive Health; Special Programme of Research, Development, and Research Training in Human Reproduction: Progestogen-only contraceptives during lactation: II. Infant development. Contraception1994; 50:55-68.
9.
9. World Health Organization (WHO) Task Force for Epidemiological Research on Reproductive Health; Special Programme of Research, Development, and Research Training in Human Reproduction: Progestogen-only contraceptives during lactation: I. Infant growth. Contraception1994; 50:35-53.
10.
10. Karim M, Ammar R, El Mahgoub S, El Ganzoury B, Fikri F, Abdou I: Injected progestogen and lactation. Br Med J1971; 1: 200-203.
11.
11. Shaaban MM: Contraception with progestogens and progesterone during lactation. J Steroid Biochem Mole Biol1991; 40: 705-710.
12.
12. Koetsawant S: The effects of contraceptive methods on the quality and quantity of breast milk. Int J Gynaecol Obstet1987; 25 Suppl: 115-127.
13.
13. Jimenez J, Ochoa M, Soler MP, Portales P: Long-term follow-up of children breast-fed by mothers receiving depotmedroxyprogesterone acetate. Contraception1984; 30:523-533.
14.
14. Pardthaisong T, Yenchit C, Gray R: The long-term growth and development of children exposed to depo-provera during pregnancy or lactation. Contraception1992; 45:313-324.
15.
15. Diaz S, Herreros C, Juez G, Casado ME, Salvatierra AM, Miranda P. et al: Fertility regulation in nursing women: VII. Influence of Norplant levonorgestrel implants upon lactation and infant growth. Contraception1985; 32:53-74.
16.
16. Shaaban MM, Salem HT, Abdullah KA: Influence of levonorgestrel contraceptive implants, Norplant, initiated early post-partum upon lactation and infant growth. Contraception1985; 32:623-635.
17.
17. Heikkila M, Luukkainen T: Duration of breast-feeding and development of children after insertion of a levonorgestrel-releasing intrauterine contraceptive device. Contraception1982; 25:279-292.
18.
18. Toaff R, Jewelewicz R: Inhibition of lactogenesis by combined oral progestogens and oestrogens. Lancet1963; ii.322-324.
19.
19. Toaff R, Ashkenazi H, Schwartz A, Herzberg M: Effects of oestrogen and progestagen on the composition of human milk. J Reprod Fert1969; 19:475-482.
20.
20. Kamal I, Hefnawi F, Ghoneim M, Abdallah M, Abdel Razek S: Clinical, biochemical, and experimental studies on lactation. V. Clinical effects of steroids on the initiation of lactation. Am J Obstet Gynecol1970; 108:655-658.
22. Lonnerdal B, Forsum E, Hambraeus L: Effect of oral contraceptives on composition and volume of breast milk. Am J Clin Nutr1980; 33:816-824.
23.
23. Nilsson S.Mellbin T.Hofvander Y.Sundelin C., Valentin J.Nygren KG: Long-term follow-up of children breast-fed by mothers using oral contraceptives. Contraception1986; 34:443-457.
24.
24. Peralta 0, Diaz S, Juez G, Herreros C, Casado ME, Salvatierra AM, Diaz S, Juez G, Herreros C, Casado ME, Salvatierra AM, et al: Fertility regulation in nursing women: V. Long-term influence of a low-dose combined oral contraceptive initiated at day 90 postpartum upon lactation and infant growth. Contraception1983; 27:27-38.
25.
25. Diaz S, Peralta 0, Juez G, Herreros C, Casado ME, Salvatierra AM, Juez G, Herreros C, Casado ME, Salvatierra AM, et al: Fertility regulation in nursing women: III. Shortterm influence of a low-dose combined oral contraceptive upon lactation and infant growth. Contraception1983; 27:1-11.
26.
26. Campodonico I, Guerrero B, Landa L: Effect of a low-dose oral contraceptive (150 jtg levonorgestrel and 30 gg ethinylestradiol) on lactation. Clin Therap1978; 1:454-459.
27.
27. Kora SJ: Effect of oral contraceptives on lactation. Fertil Steril1969; 20:419-423.
28.
28. Koetsawang S, Bhiraleus P, Chiemprajert T: Effects of oral contraceptives on lactation. Fertil Steril1972; 23:24-28.
29.
29. Miller GH, Hughes LR: Lactation and genital involution effects of a new low-dose oral contraceptive on breast-feeding mothers and their infants. Obstet Gynecol1970; 35:44-50.
30.
30. Kaern T: Effect of an oral contraceptive immediately post partum on initiation of lactation. Br Med J1967; 3:644-645.
31.
31. Barsivala VM, Virkar KD: The effects of oral contraceptives on concentrations of various components of human milk. Contraception1973; 7:307-312.
32.
32. Curtis EM: Oral-contraceptive feminization of a normal male infant. Report of a case. Obstet Gynecol1964; 23:295-296.
33.
33. Madhavapeddi R, Ramachandran P: Side effects of oral contraceptive use in lactating women-enlargement of breast in a breast-fed child. Contraception1985; 32:437-443.
34.
34. Mandel H, Berant M: Oral contraceptives and breastfeeding: haematological effects on the infant. Arch Dis Child1985; 60: 971-980.
35.
35. Visness CM, Rivera R: Progestin-only pill use and pill switching during breastfeeding. Contraception1995; 51:279-281.