(Q44122999)
Statements
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A cross-over study of three oral contraceptives containing ethinyloestradiol and either desogestrel or levonorgestrel (English)
S. Song
J. K. Chen
P. J. Yang
M. L. He
L. M. Li
B. C. Fan
H. Rekers
1 June 1992
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45
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6
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523-532
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Identifiers
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1 reference