Long-term evaluation of the clinical performance of the TCu200B and the TCu380A in Campinas, Brazil

OppenheimerW. (1959). Prevention of pregnancy by the Grafenberg Ring Method. A re-evaluation after 28 years experience.Am. J. Obstet. Gynecol.,78, 466

IshihamaA. (1974). Clinical studies on intrauterine rings, especially the present state of contraception in Japan and the experiences in the use of intrauterine devices.Contraception,10, 63

LeeN.C., RubinG.L., OryH.W. and BurkmanR.T. (1983). Type of intrauterine device and the risk of pelvic inflammatory disease.Obstet. Gynecol. 62, 1

KaufmanD.W., WatsonJ., RosenbergL., HelmrichS.P., MillerD.R., MiettinenO.S. StolleyP.D. and ShapiroS. (1983). The effect of different types of intrauterine devices on the risk of pelvic inflammatory disease.J. Am. Med. Assoc. 250, 759

VesseyM.P., YeatesD., FlavelR. and McPhersonK. (1981). Pelvic inflammatory disease and the intrauterine devices findings in a large cohort study.Br. Med. J.,282, 855

BerkmanR.T. (1981). Women's Health Study. Association between intrauterine device and pelvic inflammatory disease.Obstet. Gynecol.,57, 269

TatumH.J. (1972). Intrauterine contraception.Am. J. Obstet. Gynecol.,112, 1001

SivinI. (1973). A comparison of the copper T 200 and the Lippes Loop in four countries.Stud. Fam. Plann.,7, 115

MedelM., MartinezC., MoreheadJ.E., OsórioA., PasteneL., RiveraM. and ZipperJ. (1978). Comparative IUDs study: Lippes loop, Dalkon Shield and TCu 200.Int. J. Gynecol. Obstet.,16, 157

SivinI. and SternJ. (1979). Long-acting, more effective copper T IUDs: a summary of US experience, 1970–75.Stud. Fam. Plann.,10, 263

DíazJ., DíazM., PasteneL., ArakinR. and FaundesA. (1982). Randomized clinical study of the TCu380A and the Lippes Loop C in Campinas, Brazil.Contraception,26, 221

SungS., LianL.J. and LiuX. (1984). Comparative clinical experience with three IUDs, TCu380Ag, TCu 200C and Mahua ring in Tianjin, People's Republic of China.Contraception,29, 229

TietzeC. and LewittS. (1973). Recommended procedures for the statistical evaluation of intrauterine contraception.Stud. Fam. Plann.,4, 35

AzenS.P., RoyS. and PikeM.C. (1977). A new procedure for the statistical evaluation of intrauterine contraception.Am. J. Obstet. Gynecol.,128, 329

ZipperJ.A., MedelM., GoldsmithA. and EdelmanD.A. (1977). Six years continuation rates for CuT-200 users.J. Reprod. Med.,18, 95

World Health Organization. (1987). Mechanism of action, safety and efficacy of intrauterine devices. WHO Tech Rep. No. 753

ZipperJ.A., TatumH.J., PasteneL., MedelM. and RiveraM. (1969). Metallic copper as an intrauterine contraceptive adjunct to the ‘T’ device.Am. J. Obstet. Gynecol.,105, 1274

LuukkainenT., AllonenH., NielsenN.C., NygrenK.C. and PyoralaT. (1983). Five years experience of intrauterine contraception with the Nova-T and the copper T-200.Am. J. Obstet. Gynecol.,147, 885