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- [1] Unscheduled bleeding in combined oral contraceptive users: focus on extended-cycle and continuous-use regimens JOURNAL OF FAMILY PLANNING AND REPRODUCTIVE HEALTH CARE, 2009, 35 (04): : 245 - 248
- [5] The lowest-dose, extended-cycle combined oral contraceptive pill with continuous ethinyl estradiol in the United States: a review of the literature on ethinyl estradiol 20 mu g/levonorgestrel 100 mu g INTERNATIONAL JOURNAL OF WOMENS HEALTH, 2010, 2 : 235 - 239