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PDF) Pharmacokinetic bioequivalence, safety and acceptability of Ornibel ® , a new polymer composition contraceptive vaginal ring (etonogestrel/ethinylestradiol 11.00/3.474 mg) compared with Nuvaring ® (etonogestrel/ethinylestradiol 11.7/2.7 mg)
Rhythm method or calendar rhythm method birth control