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Fatemeh Yahyapour, Pejman Zoroufchian Moghaddam, Roozbeh Naghshin, Shadi Ghourchian,

mohammad reza bolursaz pediatric respiratory diseases research center, national research institute of tuberculosis and lung diseases (nritld), masih daneshvari hospital, shahid beheshti university of medical sciences, tehran, ir iran ferial lotfian pediatric respiratory diseases research center, national research institute of tuberculosis and lung diseases (nritld), masih daneshvari hospital, shahid beheshti university of medical sciences, tehran, ir iran; pediatric respiratory disease research center, masih daneshvari hospital, shahid beheshti university of medical sciences, tehran, ir iran. tel: +98-2127122003, fax: +98-2120109484سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) farahnaz aghahosseini clinical tuberculosis and epidemiology research center, national research institute of tuberculosis and lung diseases (nritld), masih daneshvari hospital, shahid beheshti university of medical sciences, tehran, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) maryam hassanzad pediatric respiratory diseases research center, national research institute of tuberculosis and lung diseases (nritld), masih daneshvari hospital, shahid beheshti university of medical sciences, tehran, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) hosseinali ghafaripoor chronic respiratory diseases research center, national research institute of tuberculosis and lung diseases (nritld), shahid beheshti university of medical sciences, tehran, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) soheila khalilzadeh pediatric respiratory diseases research center, national research institute of tuberculosis and lung diseases (nritld), masih daneshvari hospital, shahid beheshti university of medical sciences, tehran, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences)