VOLUME 291 (2016) PAGES 12862–12870
Thomas Schmid was inadvertently omitted as an author. The author line should appear as shown. Thomas Schmid contributed to the computational studies and was supported by the U. S. Department of State through a Fulbright scholarship. His primary affiliation is with the Department of Biomedical Engineering at the University of Alabama at Birmingham, Birmingham, Alabama 35294, and his secondary affiliation is with the Department of Computer Engineering, Universität Leipzig, Augustusplatz 10, D-04109 Leipzig, Germany. Additionally, Thomas Schmid, Qinghua Zeng, and Hong Wang contributed equally to this study.