Assertion: contraceptive's progesterone | /r/HasProperty | 50 to 300 mg/day
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Source sentences:
text: In 1952, Rock induced a three-month anovulatory "pseudopregnancy" state in eighty of his infertility patients with continuous gradually increasing oral doses of an estrogen (5 to 30 mg/day diethylstilbestrol) and progesterone (50 to 300 mg/day) and within the following four months 15% of the women became pregnant.