Author Contributions: Dr Michelena had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Michelena, Mahoney, Edwards, Sundt, Enriquez-Sarano.
Acquisition of data: Michelena, Khanna, Mahoney, Margaryan, Topilsky, Edwards, Enriquez-Sarano.
Analysis and interpretation of data: Michelena, Khanna, Mahoney, Suri, Eidem, Edwards, Sundt, Enriquez-Sarano.
Drafting of the manuscript: Michelena, Khanna, Mahoney, Edwards, Enriquez-Sarano.
Critical revision of the manuscript for important intellectual content: Michelena, Mahoney, Margaryan, Topilsky, Suri, Eidem, Edwards, Sundt, Enriquez-Sarano.
Statistical analysis: Michelena, Mahoney, Enriquez-Sarano.
Obtained funding: Michelena, Enriquez-Sarano.
Administrative, technical, or material support: Michelena, Khanna, Topilsky, Eidem, Edwards, Enriquez-Sarano.
Study supervision: Michelena, Suri, Eidem, Sundt, Enriquez-Sarano.
Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Dr Suri reported institutional support from Sorin RC on minimally invasive aortic valve replacement. Dr Enriquez-Sarano reported serving on the advisory board of Valtech; otherwise no other disclosures were reported.
Funding/Support: Partially funded by a faculty development grant awarded to Dr Michelena by the Department of Internal Medicine of the Mayo Clinic, Rochester, Minnesota. The Division of Cardiovascular Diseases of the Mayo Clinic supported the costs of survey creation and mailings, as well as statistical analysis costs.
Additional Contributions: The authors wish to thank David J. Huschka, BS, cardiovascular department, Mayo Clinic, for his contributions in electronic research application solutions, for which he was not compensated beyond his usual pay.
This article was corrected for errors on September 13, 2011.