Author Contributions: Dr Friedman had full access to all 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: Glaich, Dai, and Friedman. Acquisition of data: Glaich, Dai, and Friedman. Analysis and interpretation of data: Glaich, Goldberg, Dai, Kunishige, and Friedman. Drafting of the manuscript: Glaich, Dai, and Kunishige. Critical revision of the manuscript for important intellectual content: Goldberg, Kunishige, and Friedman. Study supervision: Goldberg and Friedman.