Ragnheidur I. Bjarnadóttir
Department of Obstetrics and Gynecology
landspítalinn
Rekjavik
Iceland
Name/email consistency: high
- Comparison of cycle control with a combined contraceptive vaginal ring and oral levonorgestrel/ethinyl estradiol. Bjarnadóttir, R.I., Tuppurainen, M., Killick, S.R. Am. J. Obstet. Gynecol. (2002)