Stratified sampling design and loss to follow-up in survival models: evaluation of efficiency and bias.
| Autor: | César, Cibele C.1 cibele.comini@gmail.com, Carvalho, Marilia S.2 |
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| Zdroj: | BMC Medical Research Methodology. 2011, Vol. 11 Issue 1, p99-107. 9p. |
| Databáze: | Academic Search Ultimate |
| Externí odkaz: |
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