University SQ. Second National Update on Chronic Obstructive Pulmonary Disease (COPD) Oman Respiratory Society and Sultan Qaboos University 14th October 2010. Sultan Qaboos Univ Med J [Internet]. 2011Dec.1 [cited 2024Oct.31];11(3):436-8. Available from: https://journals.squ.edu.om/index.php/squmj/article/view/1619