Epidemiology research
- PMID: 12133689
- DOI: 10.1016/S0140-6736(02)09479-5
Epidemiology research
Comment on
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Cohort studies: marching towards outcomes.Lancet. 2002 Jan 26;359(9303):341-5. doi: 10.1016/S0140-6736(02)07500-1. Lancet. 2002. PMID: 11830217
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Case-control studies: research in reverse.Lancet. 2002 Feb 2;359(9304):431-4. doi: 10.1016/S0140-6736(02)07605-5. Lancet. 2002. PMID: 11844534
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