1. The impact of clinical guidelines and clinical pathways on medical practice: effectiveness and medico-legal aspects;Cheah;Annals of the Academy of Medicine, Singapore,1998
2. Tuberculosis control: past 10 years and future progress;Frieden;Tuberculosis (Edinburgh, Scotland),2003
3. The burden and impact of COPD in Asia and Africa [state of the art];Chan-Yeung;The International Journal of Tuberculosis and Lung Disease,2004
4. Chronic airflow limitation in developing countries: burden and priorities;Aït-Khaled;International Journal of Chronic Obstructive Pulmonary Disease,2007
5. Khaled , K. M. 2008 Tuberculosis (TB) progress toward millennium development goals (MDGS) and DOTS in WHO Eastern Mediterranean Region (EMR) http://scholarworks.gsu.edu/iph_theses/41/