(Q34001872)
Statements
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Increasing levels of restriction in pharmacoepidemiologic database studies of elderly and comparison with randomized trial results (English)
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Til Stürmer
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M Alan Brookhart
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Sebastian Schneeweiss
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Robert J Glynn
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Jerry Avorn
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Malcolm Maclure
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Amanda R Patrick
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1 October 2007
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Identifiers
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