1. Division of Infectious Diseases, Department of Medicine, Long School of Medicine, University of Texas Health Science Center San Antonio, San Antonio, Texas, USA.
2. Division of Infectious Disease, Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA.
3. Department of Population Health Sciences, University of Texas Health Science Center San Antonio, San Antonio, Texas, USA.
4. Department of Epidemiology, Fielding School of Public Health, University of California Los Angeles, Los Angeles, California, USA.
5. Department of Family Medicine, University of California Los Angeles, Los Angeles, California, USA.
6. Department of Psychiatry and Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, Texas, USA.