Submitted for Publication: May 12, 2014; final revision received August 18, 2014; accepted September 25, 2014.
Published Online: December 18, 2014. doi:10.1001/jamaoto.2014.3185.
Study concept and design: Ambro, Pereira.
Acquisition, analysis, or interpretation of data: Ortlip, Pereira.
Drafting of the manuscript: All authors.
Critical revision of the manuscript for important intellectual content: Ambro, Pereira.
Administrative, technical, or material support: Ortlip, Ambro.
Study supervision: Pereira.
Conflict of Interest Disclosures: None reported.