• Albertson, B. D. (1989) "Constituents of saliva and breast milk." International Journal of Gynecology and Obstetrics 1 [supplement]: 53-65.
     
  • Arevalo, M., Jennings, V. and Sinai, I. (2003) "Application of simple fertility awareness-based methods of family planning to breastfeeding women." Fertility and Sterility 80:1241-1248.
     
  • Bouchard, T., Schneider, M., Fehring, R. (2013) "Efficacy of a new postpartum transition protocol for avoiding pregnancy." Journal of the American Board of Family Medicine 26: 35-44.
     
  • Chica-Mestre, M. D., Barranco-Castillo, E., Soler, F. (1992) "Breastfeeding to control return of fertility and childbirth." Advances in Contraception 8: 226.
     
  • Cooney, K.A., Nyirabukeye, T., Labbok, M.H., Hoser, P.H., Ballard, E. (1996) "An assessment of the nine-month lactational amenorrhea method (mama-9) in Rwanda" Studies in Family Planning 27 (3): 162-171.
     
  • Cronin, T. J. (1968/August) "Influence of lactation upon ovulation." Lancet 2: 422-424.
     
  • Dewey, K.G., Cohen, R.J., Rivera, L.R., et al. (1997) "Effects of age at introduction of complementary foods to breast-fed infants on duration of lactational amenorrhea in Honduran women." American Journal of Clinical Nutrition 65: 1403-1409.
     
  • Fehring, R. J., Barron, M. L., Schneider, M. (2005) Protocol for determining fertility while breastfeeding and not in cycles. Fertility and Sterility 84: 805-807.
     
  • Flynn, A. M. (1981) "A survey of postpartum fertility studies with particular reference to the breastfeeding mother." International Journal of Fertility 26 (3): 203-208.
     
  • Flynn, A. M., Docker, M., Brown, J. B., Kennedy, K. I. (1991) "Ultrasonographic patterns of ovarian activity during breastfeeding." American Journal of Obstetrics and Gynecology 165: 2027-2031.
     
  • France, M. (1996). "A study of the lactational amenorrhea method of family planning in New Zealand women." New Zealand Medical Journal 109: 189-191. 
     
  • Gross, B. A. (1981) "The hormonal and ecological correlates of lactation infertility." International Journal of Fertility 26 (3): 209-218.

    _______. (1988) "Breastfeeding and natural family planning". International Journal of Fertility, 33 [supplement]: 24-31.

    _______. (1991) "Is the lactational amenorrhea method a part of natural family planning? Biology and policy." American Journal of Obstetrics and Gynecology 165: 2014-2019.
     
  • Hatherley, L. I. (1985a) "Natural family planning after pregnancy. A problem for women with previously irregular menstrual cycles." Clinical Reproduction and Fertility 3 (3): 197-203.

    _______. (1985b) "Lactation and postpartum infertility: The use-effectiveness of natural family planning (NFP) after term pregnancy." Clinical Reproduction and Fertility 3 (4): 319-334.

    _______. (1985) "Late infertile days in early postpartum cycles." Clinical Reproduction and Fertility 3 (1): 73-80.
     
  • Howie, P. W. (1991) "Breastfeeding: A natural method for child spacing." American Journal of Obstetrics and Gynecology 165: 1990-1991.
     
  • Jennings, V. H. (1990) "Breastfeeding promotion in family planning programs." International Journal of Gynecology and Obstetrics 31 [supplement]: 131-133.
     
  • Kazi, A., Kennedy, Visness, C.M., Khan, T. (1995) "Effectiveness of lactational amenorrhea method in Pakistan." Fertility and Sterility 64: 717-723.
     
  • Kennedy, K.I., Labbok, M.H., Van Look, P.F.A. (1996) "Consensus statement- lactational amenorrhea method for family planning. International Journal of Gynecology and Obstetrics 54: 55-57.
     
  • Kennedy, K. I., Parenteau-Carreau, S., Flynn, A., Gross, B., Brown, J. B., Visness, C. (1991) "The natural family planning--lactational amenorrhea method interface: Observations from a prospective study of breastfeeding users of natural family planning." American Journal of Obstetrics and Gynecology 165: 2020-2026.
     
  • Labbok, M., McDonald, M. (1990) "Workshop on health care practices related to breastfeeding, Washington, D.C., USA." International Journal of Gynecology and Obstetrics 31 [supplement]: 1-183.
     
  • Labbok, M., Krasovec, K. (1990) "Toward consistency in breastfeeding definitions." Studies in Family Planning 21: 226-230.
     
  • Labbok, M., Stallings, R. Y., Shah, F., Perez, A., Klaus, H., Jacobson, M., Muruthi, T. (1991) "Ovulation method use during breastfeeding: Is there increased risk of unplanned pregnancy?" American Journal of Obstetrics and Gynecology 165: 2031-2036.
     
  • Labbok, M.H., Hight-Laukaren, V., Peterson, A.E., Fletcher, V., von Hertzen, H., Van Look, P.F.A. (1997) "Multicenter study of the lactational amenorrhea method (LAM): I. Efficacy duration and implications for clinical application." Contraception 55: 327-336. 
     
  • Lewis, P. R., Brown, J. B., Renfree, M. B., Short, R. V. (1991) "The resumption of ovulation and menstruation in a well-nourished population of women breastfeeding for an extended period of time." Fertility & Sterility 55: 529-536.
     
  • McKeown, T., Gibson, J. R. (1954) "A note on menstruation and conception during lactation." Journal of Obstetrics and Gynecology of the British Empire 61: 825-826.
     
  • Minaguchi, H., Meites. (1967) "Effects of suckling on hypothalamic LH-releasing factor and prolactin inhibiting factor, and on pituitary LH and prolactin." Endocrinology 80: 604-606.
     
  • Pagano, F., Barbato, M. (1992) "Lactational amenorrhea in an Italian population as an NFP method." Advances in Contraception 8: 225.
     
  • Perez, A. (1981) "Natural family planning: Postpartum period." International Journal of Fertility 26 (3): 219-221.
     
  • Perez, A., Labbok, M., Barker, D., Gray, R. (1988) "Use-effectiveness of the ovulation method initiated during postpartum breastfeeding." Contraception 38: 499-508.
     
  • Perez, A. and Valdes, V. (1991) "Santiago breastfeeding promotion program: Preliminary results of an intervention study." American Journal of Obstetrics and Gynecology 165: 2039-2044.
     
  • Perez, A., Vela, P., Masnock, G. S., Potter, R. G. (1972) "First ovulation after childbirth: The effect of breastfeeding." American Journal of Obstetrics and Gynecology 114: 1041-1047.
     
  • Ramos, R., Kennedy, K.I., Visness, C.M. (1996). "Effectiveness of lactational amenorrhea in prevention of pregnancy in Manila, the Philippines: a non-comparative prospective trial." British Medical Journal 313: 909-912.
     
  • Salber, E., Feinleib, M., MacMahon, B. (1966) "The duration of postpartum amenorrhea." American Journal of Epidemiology 82: 349-351.
     
  • Sharman, A. (1951) "Ovulation after pregnancy," Fertility and Sterility 2: 387.
     
  • Short, R. V., Lewis, P. R., Renfree, M. B., Shaw, G. (1991) "Contraceptive effects of extended lactational amenorrhoea: Beyond the Bellagio consensus." Lancet 337: 715-717.
     
  • Sinai, I. and Cachan, J. (2012) "A bridge for postpartum women to Standard Days Method, I. Developing the bridge." Contraception 86: 12-15.
     
  • ________. (2012) "A bridge for postpartum women to Standard Days Method, II. Efficacy study." Contraception 86:16-21.
     
  • Tomaselli, G. A., Guida, M., Palomba, S, et al. (2000) "Using complete breast-feeding and lactational amenorrhoea as birth spacing methods." Contraception 61: 253-257.
     
  • Udesky, I. (1950) "Ovulation in lactating women." American Journal of Obstetrics and Gynecology 59: 847.
     
  • Valdes, V., Pugin, E., Labbok, M.H., Perez, A., Catalan, S., Aravena, R., Adler, M.R. (1995) "The effects on professional practices of a three-day course on breastfeeding." Journal of Human Lactation 11 (3): 185-190.
     
  • Visness, C.M. and Kennedy, K.I. (1997) "The frequency of coitus during breastfeeding." Birth, 24(4), 253-257.
     
  • Visness, C.M., Kennedy, K.I., Ramos, R. (1997) "The duration and character of postpartum bleeding among breast-feeding women." Obstetrics and Gynecology, 89, 159-163.
     
  • World Health Organization Task Force on Methods for the Natural Regulation of Fertility. (1998) "The World Health Organization multinational study of breast-feeding and lactational amenorrhea. I. Description of infant feeding patterns and the return of menses." Fertility and Sterility 70: 448-60.
     
  • ________. (1998) "The World Health Organization multinational study of breast-feeding and lactational amenorrhea. II. Factors associated with the length of amenorrhea." Fertility and Sterility 70: 461-471.
     
  • ________. (1999) "The World Health Organization multinational study of breast-feeding and lactational amenorrhea. III. Pregnancy during breastfeeding." Fertility and Sterility 72: 431-440.
     
  • ________. (1999) "The World Health Organization multinational study of breast-feeding and lactational amenorrhea. IV. Postpartum bleeding and lochia in breast-feeding women." Fertility and Sterility 72: 441-447.
     
  • Zinaman, M. and Stevenson, W. (1991) "Efficacy of the symptothermal method of natural family planning in lactating women after the return of menses." American Journal of Obstetrics and Gynecology 165: 2037-2039.

 

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