Accepted for Publication: December 20, 2012.
Author Contributions:Study concept and design: Tebruegge and Faust. Acquisition of data: Tebruegge and Sukhtankar. Analysis and interpretation of data: Tebruegge, Patel, and Faust. Drafting of the manuscript: Tebruegge. Critical revision of the manuscript for important intellectual content: All authors. Study supervision: Tebruegge, Patel, and Faust.
Conflict of Interest Disclosures: None reported.