1. Moin M, Alyacin S, Amoli K, Ebtekar M, Eslami M, Elyasi H.Asthma (Basic and clinical sciences). 1thed. Tehran: University publication of center. 2003:22-25.
2. Prevalencia del asma en América Latina. Mirada crítica a partir del ISAAC y otros estudios
3. Ghazi BM, Sharifi SH, Goodarzipoor K, Aghamohammadi A, Atarod L, Rezaei N, et al. The prevalence of asthma among the students (7-18 years old) in Tehran during 2002-2003. Iranian Journal of Allergy, Asthma and Immunology. 2004;3(2):89-92 [Persian].
4. Golshan M, Mohammad-Zadeh Z, Khanlar-Pour A. Prevalence of asthma and related symptoms in junior high school children in Isfahan, Iran. Monaldi archives for chest disease. 2002;57(1):19-24[Persian].
5. Kaghazian H MG. Textbook of pediatrics (Immunology). Tehran: Hayyan-Abasaleh; 2003[Persian].