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Referencias
Billings, E. L., Billings, J. J., and Catarinich, M. (1989),
Billings Atlas of the Ovulation Method, 5th Edition.
[Ovulation Method Research and Reference Centre of Australia
Melbourne.]
Billings, E. L., Billings, J. J., Brown, J. B., and Burger. H. (1972),
"Symptoms and hormonal changes accompanying
ovulation", Lancet,
1. 282-4.
Billings, E. L. and Westmore, A. (1992). The Billings Method, 3rd Edition.
[Anne
O'Donnovan : Melbourne.]
Billings, J. J. (1983), The
Ovulation Method, 7th Edition. [Advocate Press: Melbourne.]
Brown, J. B., Harrisson, P., Smith, M. A., and Burger, H. G. (1983),
"Correlations between the mucus symptoms and the hormonal
markers or fertility throughout reproductive life",
Appendix 1 in The Ovulation Method, by J. J. Billings,
7th Edition, [Advocate Press: Melboume.]
Odeblad, E. (1989), "The
cervix, the vagina and fertility",
Appendix 1 in Billings Atlas of the Ovulation Method,
5th Edition by E L Billings, J. J. Billings, and N. L. Catarinich.
[Ovulation Method Research and Reference Centre of Australia: Melboume.]
Odeblad. E. (1994), "The
discovery of different types of cervical mucus and the Billings Ovulation
Method", Bulletin of
the Natural Family Planning Council of Victoria 21,
No.3.
WHO (1991-1987), "A prospective multi-centre trial of the Ovulation Method
of natural family planning",
I. "The teaching phase", Fertility and Sterility 36,152-8(1981a).
II. "The effectiveness phase", Fertility and Sterility 36,591-8(1981b).
III. "Characteristics of the menstrual cycle and of the fertile
phase", Fertility
and Sterility 40,773-8(1983).
IV "The
outcome of pregnancy",
Fertility and Sterility 41,
593 - 8 (1984).
V. "Psychosexual aspects",
Fertility and Sterility
47, 765 - 72
(1987).
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