(Q50989780)
Statements
Inhibition of ovulation by an oral contraceptive containing 100 micrograms levonorgestrel in combination with 20 micrograms ethinylestradiol. (English)
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Spona J
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Feichtinger W
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Kindermann C
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Wünsch C
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Brill K
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1 November 1996
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54
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5
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299-304
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