Study concept and design: Marin, Yealy, Mannix.
Acquisition, analysis, or interpretation of data: Marin, Weaver, Mannix.
Drafting of the manuscript: Marin, Yealy, Mannix.
Critical revision of the manuscript for important intellectual content: Marin, Weaver, Yealy, Mannix.
Statistical analysis: Marin, Weaver, Mannix.
Obtained funding: Marin.
Administrative, technical, or material support: Marin, Yealy.
Study supervision: Marin, Yealy, Mannix.
Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest and none were reported.
Funding/Support: Support for this study was provided by the National Heart, Lung, and Blood Institute (K12HL109068) (J.R.M.).
Role of the Sponsor: The funding source had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.