Assertion: oral contraceptive | /r/MadeOf | 80 to 100 mcg of mestranol
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Source sentences:
text: An observational report on 83 women who were given 1 of 9 combination oral contraceptives containing 50 mcg of ethinyl estradiol and 80 to 100 mcg of mestranol starting at 5 days postpartum found that 54% were still breastfeeding at 6 weeks postpartum.