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Evidence of methodological bias in hospital standardised mortality ratios: retrospective database study of English hospitals
| Formato: | Texto |
|---|---|
| Lenguaje: | English |
| Publicado: |
BMJ Publishing Group Ltd.
2009
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3048810/ http://dx.doi.org/10.1136/bmj.b1348 |