References
- Sivin I., Mishell D. R., Jr., Victor A., Diaz S., et al. A multicenter study of levonorgestrel-estradiol contraceptive vaginal rings. I. Use effectiveness. An international comparative trial. Contraception 1981; 24: 341–358
- Sivin I., Mishell D. R., Jr., Victor A., Diaz S., et al. A multicenter study of levonorgestrel-estradiol contraceptive vaginal rings. II. Menstrual patterns. An international comparative trial. Contraception 1981; 24: 377–392
- Roy S., Krauss R. M., Mishell D. R., Jr., Casagrande J., Pike M. C. The effects on lipids and lipoproteins of a contraceptive vaginal rings containing levonorgestrel and estradiol. Contraception 1981; 24: 429–450
- Åhrén T., Lithell H., Victor A., Vessby B., Johansson E. D. B. Comparison of the metabolic effects of two hormonal contraceptive methods: An oral formulation and a vaginal ring. II. Serum lipoproteins and apolipoproteins. Contraception 1981; 24: 451–468
- Robertson D. N., Alvarez F., Sivin I., Brache V., Stern J., Leon P., Faundes A. Lipoprotein patterns in women in Santo Domingo using a levonorgestrel/estradiol contraceptive ring. Contraception 1981; 24: 469–480
- Gordon T., Castelli W. P., Hjortland M. C., Kannel W. B., Dawbeer T. R. High density lipoprotein as a protective factor against coronary heart disease. The Framingham study. Am J Med 1977; 62: 707–714
- Ishikawa T., Fidge N., Thelle D. S., Förde O. H., Miller N. E. The Tromsö Heart Study: Serum apolipoprotein A I concentration in relation to future coronary heart disease. Eur J Clin Invest 1978; 8: 179–182
- Åhrén T., Victor A., Lithell H., Jackanicz T. M., Johansson E. D. B. Ovarian function, bleeding control and serum lipoproteins in women using contraceptive vaginal rings releasing five different progestins. Contraception 1983; 28: 315–327
- Jackanicz T. M. Levonorgestrel and estradiol release from an improved contraceptive vaginal ring. Contraception 1981; 24: 323–240
- Bosu W. T. K., Edqvist L.-E., Lindberg P., Martinsson K., Johansson E. D. B. The effects of lynestrenol on the plasma levels of estrogens and progesterone during the menstrual cycle in the rhesus monkey. Contraception 1976; 13: 677–684
- Edqvist L.-E., Johansson E. D. B. Radioimmunoassay of oestrone and oestradiol in human and bovine peripheral plasma. Acta Endocrinol 1972; 71: 716–730
- Odlind V., Johansson E. D. B. Free norethisterone as reflected by saliva concentrations during oral contraceptive use. Acta Endocrinol 1981; 98: 470–476
- Rush R. L., Leon L., Turrell J. Automated simultaneous cholesterol and triglyceride determination on the Auto Analyzer II instrument. Advances in Automated Analysis. Thurman associates, Miami, Florida 1971; Vol. 1: 503–507
- Burstein M., Samille J. Sur un dosage rapide du cholesterol lie aux α- et aux β-lipoproteins du serum. Clin Chim Acta 1960; 5: 609
- Vessby B., Boberg J., Gustafsson I.-B., Karlström B., Lithell H., Östlund-Lindqvist A.-M. Reduction of high density lipoprotein cholesterol and apolipoprotein A-I concentrations by a lipid lowering diet. Atherosclerosis 1980; 35: 21–27
- Landgren B.-M., Oriowo M. A., Diczfalusy E. Pharmacokinetic and pharmacodynamic studies with vaginal devices releasing norethisterone at a constant near zero order. Contraception 1981; 24: 29–44
- Odlind V., Weiner E., Victor A., Johansson E. D. B. Plasma levels of norethindrone after single oral dose administration of norethindrone and lynestrenol. Clin Endocrinol 1979; 10: 29–38
- Odlind V., Weiner E., Johansson E. D. B. Plasma levels of norethindrone and effect upon ovarian function during treatment with silastic implants containing norethindrone. Contraception 1979; 19: 197–206
- Mishell D. R., Jr., Moore D. E., Roy S., Brenner P. F., Page M. A. Clinical performance and endocrine profile with contraceptive vaginal rings containing a combination of estradiol and d-norgestrel. Am J Obstet Gynecol 1978; 130: 55–62
- Mehta S., Joshi U. K., Sankolli G. M., Adatia A., Donde U. M., Saxena B. M. Clinical performance and endocrine profile with contraceptive vaginal rings containing a combination of estradiol and d-nor-gestrel. Contraception 1981; 23: 241–250
- Miller N. E., Hammett F., Saltissi S., Rao S., van Zeller H., Coltart J., Lewis B. Relation of angiographically defined coronary heart disease to plasma lipoprotein subfractions and apolipoproteins. Brit Med J 1981; 282: 1741–1744