Methodologic issues regarding background mortality in observational studies
- PMID: 22014353
- DOI: 10.1016/j.jtcvs.2011.07.063
Methodologic issues regarding background mortality in observational studies
Comment on
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Aortic valve replacement: results and predictors of mortality from a contemporary series of 2256 patients.J Thorac Cardiovasc Surg. 2011 Apr;141(4):940-7. doi: 10.1016/j.jtcvs.2010.05.044. Epub 2010 Jul 6. J Thorac Cardiovasc Surg. 2011. PMID: 20599229
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