1. Department of Medicine, Section of Infectious Diseases, Baylor College of Medicine, Houston, Texas, USA
2. Health Services Research, Michal E. DeBakey Center for Innovations in Quality, Effectiveness, and Safety (IQuESt), Houston, Texas, USA
3. Department of Medicine, Section of Health Services Research, Baylor College of Medicine, Houston, Texas, USA
4. Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA