Infectious Diseases Research Center Kermanshah University of Medical Sciences Kermanshah Iran;
Infectious Diseases Research Center Kermanshah University of Medical Sciences Kermanshah Iran;
Clinical Research Development Center Imam Reza Hospital Kermanshah University of Medical Sciences Kermanshah Iran;
Social Development and Health Promotion Research Center Kermanshah University of Medical Sciences Kermanshah Iran;
Infectious Diseases Research Centre Kashan University of Medical Sciences Kashan Iran;
Clinical Research Development Center Imam Reza Hospital Kermanshah University of Medical Sciences Kermanshah Iran;
Pediatric Pathology Research Center Research Institute for Children Health Mofid Children Hospital Shahid Behehsti University of Medical Sciences Tehran Iran;
Infectious Diseases Research Center Kermanshah University of Medical Sciences Kermanshah Iran;
Tuberculosis; Latent tuberculosis infection; Tuberculin skin test; Quanti FERON;