The effect of ethinyl estradiol 20 mcg and levonorgestrel 250 mcg on the pituitary-ovarian function during normal tablet-taking and when tablets are missed
Nuttall, I.D., Elstein, M., McCafferty, E., Seth, J., Cameron, E.D.
Published in Contraception (Stoneham) (01.08.1982)
Published in Contraception (Stoneham) (01.08.1982)
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