Author Contributions: Dr Larson 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: Larson, Sharkey,
Harris, Meland, Henry.
Acquisition of data: Larson, Menssen,
Harris, Meland, Unger, Henry.
Analysis and interpretation of data:
Larson, Menssen, Sharkey, Duval, Schwartz, Henry.
Drafting of the manuscript: Larson,
Menssen, Sharkey, Henry.
Critical revision of the manuscript for important intellectual content: Larson, Sharkey, Duval, Schwartz, Harris,
Meland, Unger, Henry.
Statistical analysis: Larson, Menssen,
Obtained funding: Larson, Henry.
Administrative, technical, or material support:
Study supervision: Larson, Sharkey,
Schwartz, Unger, Henry.
Financial Disclosures: None reported.
Funding/Support: The study was supported by the Minneapolis Heart Institute Research Foundation.
Role of the Sponsor: The Minneapolis Heart Institute Research Foundation had no role in the design and conduct of the study; in the collection, analysis, and interpretation of the data; or in the preparation, review, or approval of the manuscript.
Additional Contribution: We are grateful to Jennifer Krech, BA, of the Minneapolis Heart Institute Research Foundation for her assistance in preparation of the manuscript. Ms Krech received no compensation.