Submitted for Publication: August 4, 2014; final revision received October 9, 2014; accepted November 4, 2014.
Published Online: April 16, 2015. doi:10.1001/jamaoto.2015.0524.
Study concept and design: Mohammadi, Rashan, Psaltis, Li, El-Sawy, Nayak.
Acquisition, analysis, or interpretation of data: Mohammadi, Rashan, Janisewicz, Li, Nayak.
Drafting of the manuscript: Mohammadi, Rashan, Nayak.
Critical revision of the manuscript for important intellectual content: All authors.
Administrative, technical, or material support: Psaltis, Janisewicz, Li, Nayak.
Study supervision: Rashan, Psaltis, Li, El-Sawy, Nayak.
Conflict of Interest Disclosures: None reported.