(Q47421718)
Statements
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The unseen sample in cohort studies: estimation of its size and effect. Multicenter AIDS Cohort Study (English)
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Vermund SH
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Muñoz A
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Hoover DR
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Carey V
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Odaka N
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Taylor JM
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Chmiel JS
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Armstrong J
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1 December 1991
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10
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12
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1993-2003
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