Cotinine Level Is Associated with Asthma Severity in Passive Smoker Children - Hassanzad, Maryam; Khalilzadeh, Soheila; Eslampanah Nobari, Shabnam; Bloursaz, Mohammadreza; Sharifi, Hooman; Mohajerani, Seyed Amir; Tashayoie Nejad, Sabereh; Velayati, Ali Akbar (Iranian Journal of Allergy, Asthma and Immunology)