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J Thorac Cardiovasc Surg 2008;136:1102
© 2008 The American Association for Thoracic Surgery

Letter to the Editor

Reply to the Editor:

Morgan Brown, MD, Hartzell Schaff, MD

Division of Cardiovascular Surgery, Mayo Clinic, Rochester, MN

The first 20% of the full text of this article appears below.

Drs Cannata, Russo, and Taglieri commented on our results and the possible impact of selection bias, which is present in all observational surgical series. We matched patients and used multivariate analyses, but it is impossible to determine whether this has accounted for all possible confounders. We agree that only randomization can distribute unmeasured covariates evenly between groups.

A question was raised regarding the extent of coronary artery disease. We used . . . [Full Text of this Article]






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