Accepted for Publication: February 3, 2012.
Author Contributions: Both authors had full access to all of the data in the study and take responsibility for the integrity and the accuracy of the data analysis. Study concept and design: Schmults. Acquisition of data: Lilly. Analysis and interpretation of data: Lilly and Schmults. Drafting of the manuscript: Lilly. Critical revision of the manuscript for important intellectual content: Lilly and Schmults. Statistical analysis: Schmults. Administrative, technical, and material support: Lilly. Study supervision: Schmults.
Financial Disclosure: None reported.