1. University of California, San Francisco, San Francisco General Hospital;
2. Duke Clinical Research Institute, Duke University Medical Center, Durham, North Carolina;
3. Center for Biostatistics in AIDS Research and Department of Biostatistics, Harvard University, Boston, Massachusetts;
4. Public Health Research Institute Tuberculosis Center, New Jersey Medical School–Rutgers University, Newark; and
5. Division of Infectious Diseases, Department of Medicine, Duke University Medical Center, Durham, North Carolina