Al-Rawas, Omar A, Bazdawi M Al-Riyami, Hussein Al-Kindy, Abdullah A Al-Maniri, and Asya A Al-Riyami. “Regional Variation in the Prevalence of Asthma Symptoms Among Omani School Children : Comparisons from Two Nationwide Cross-Sectional Surveys Six Years Apart”. Sultan Qaboos University Medical Journal 8, no. 2 (July 1, 2008): 157–169. Accessed April 29, 2024. https://journals.squ.edu.om/index.php/squmj/article/view/1351.