Study concept and design: Friedman, Ananth, D’Alton, Wright.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Friedman, Prendergast, Wright.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Friedman, Ananth, Prendergast, Wright.
Obtained funding: Wright.
Administrative, technical, or material support: D’Alton, Wright.
Study supervision: D’Alton, Wright.
Conflict of Interest Disclosures: The authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest and none were reported.