1. Tuberculosis and Chest Service; Department of Health; Hong Kong China
2. Pleural Diseases Unit; Department of Internal Medicine; Arnau de Vilanova University Hospital; Biomedical Research Institute of Lleida; Lleida Spain
3. Department of Respiratory Medicine; Juntendo University Graduate School of Medicine; Tokyo Japan
4. South Texas Veterans Health Care System Audie L. Murphy Division; San Antonio Texas USA
5. University of Texas Health Science Center at San Antonio; San Antonio Texas USA
6. Department of Medicine; National University Hospital; Singapore
7. Queensland Children's Medical Respiratory Centre; Royal Children's Hospital; Brisbane Queensland Australia
8. Queensland Children's Medical Research Institute; University of Queensland; Brisbane Queensland Australia