(Q35877977)
Statements
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The impact of research quality and study design on epidemiologic estimates of the effect of nonsteroidal anti-inflammatory drugs on upper gastrointestinal tract disease (English)
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S. Pérez Gutthann
García Rodríguez LA
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Pérez Gutthann S
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P. Bollini
L. A. García Rodríguez
1 June 1992
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152
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6
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1289-1295
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Identifiers
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