BBT-Rhythm Method Fails to Pinpoint Ovulation for One-Fifth of U.S., One-Fourth of U.K. Women
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1962 ◽
Vol 84
(5)
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pp. 692-698
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1964 ◽
Vol 19
(1)
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pp. 156-157
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1967 ◽
Vol 99
(7)
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pp. 1016-1019
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1975 ◽
Vol 11
(2)
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pp. 119-133
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1972 ◽
Vol 113
(6)
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pp. 855
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