1. Department of Psychology, University of Alabama at Birmingham, Birmingham, AL, USA
2. Department of Anesthesiology & Perioperative Medicine, Division of Pain Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
3. Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham, Birmingham, AL, USA
4. Department of Health Care Organization and Policy, University of Alabama at Birmingham, Birmingham, AL, USA
5. Divisions of General Internal Medicine and Infectious Diseases, University of Pittsburgh, Pittsburgh, PA, USA