Author Contributions: All authors had full access to all of 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: Patel, Nijhawan, Stechschulte, and Hu. Acquisition of data: Patel, Nijhawan, and Stechschulte. Analysis and interpretation of data: Patel, Stechschulte, Parmet, Rouhani, Kirsner, and Hu. Drafting of the manuscript: Patel, Stechschulte, Parmet, and Rouhani. Critical revision of the manuscript for important intellectual content: Patel, Nijhawan, Stechschulte, Rouhani, Kirsner, and Hu. Statistical analysis: Parmet and Rouhani. Administrative, technical, and material support: Patel and Nijhawan. Study supervision: Stechschulte, Kirsner, and Hu.