Author Contributions: Dr Herzig had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis. Study concept and design: Herzig, Vaughn, Howell, Ngo, and Marcantonio. Acquisition of data: Herzig, Vaughn, and Howell. Analysis and interpretation of data: Herzig, Howell, Ngo, and Marcantonio. Drafting of the manuscript: Herzig. Critical revision of the manuscript for important intellectual content: Herzig, Vaughn, Howell, Ngo, and Marcantonio. Statistical analysis: Herzig and Ngo. Administrative, technical, and material support: Herzig, Vaughn, and Howell. Study supervision: Herzig and Marcantonio.