Joint statement for the diagnosis, management, and prevention of chronic obstructive pulmonary disease for Gulf Cooperation Council countries and Middle East-North Africa region, 2017. - Mahboub BH; Vats MG; Al Zaabi A; Iqbal MN; Safwat T; Al-Hurish F; Miravitlles M; Singh D; Asad K; Zeineldine S; Al-Hajjaj MS (International journal of chronic obstructive pulmonary disease, 2017)