Submitted for Publication: September 18, 2012; final revision received November 27, 2012; accepted December 29, 2012.
Published Online: March 21, 2013. doi:10.1001/jamaoto.2013.38
Author Contributions: Drs Cohen and Safadi contributed equally to this study. Drs Cohen, Safadi, Fliss, and Horowitz had full access to all the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. Study concept and design: Cohen, Safadi, Fliss, Gil, and Horowitz. Acquisition of data: Cohen, Safadi, and Horowitz. Analysis and interpretation of data: Cohen, Safadi, Gil, and Horowitz. Drafting of the manuscript: Cohen, Safadi, Gil, and Horowitz. Critical revision of the manuscript for important intellectual content: Cohen, Fliss, Gil, and Horowitz. Statistical analysis: Cohen, Safadi, and Horowitz. Administrative, technical, and material support: Cohen, Fliss, and Horowitz. Study supervision: Gil.
Conflict of Interest Disclosures: None reported.
Additional Contributions: Esther Eshkol provided editorial assistance.