1. Division of Pediatric Infectious Diseases, Mayo Clinic, Rochester, Minnesota
2. Tuberculosis Control Branch, Division of Communicable Disease, Center for Infectious Disease, California Department of Public Health, Richmond, California
3. Microbial Diseases Laboratory, Division of Communicable Disease, Center for Infectious Disease, California Department of Public Health, Richmond, California
4. Francis J. Curry National Tuberculosis Center, San Francisco, California
5. Division of Tuberculosis Elimination, Centers for Disease Control and Prevention, Atlanta, Georgia