Authors
1 Clinical Tuberculosis and Epidemiology Research Center, National Research Institute of Tuberculosis and Lung Disease (NRITLD),
2 Pediatric Respiratory Diseases Research Center, NRITLD,
3 Tracheal Diseases Research Center, NRITLD,
4 Mycobacteriology Research Center, NRITLD, Shahid Beheshti University of Medical Sciences, Tehran ,Iran