1. Department of Diagnostic and Interventional Imaging; University of Texas Health Science Center at Houston; Houston Texas USA
2. Wyle Integrated Science and Engineering; Houston Texas USA
3. Department of Neurology; University of Texas Health Science Center at Houston; Houston Texas USA
4. Division of General Internal Medicine; University of Calgary; Calgary Alberta Canada
5. Universities Space Research Association; Houston Texas USA
6. Baylor College of Medicine; Section of Emergency Medicine; Houston Texas USA