Jones, Paul W. “ASSESSMENT AND MANAGEMENT OF ASTHMA AND CHRONIC OBSTRUCTIVE PULMONORY DISEASE (COPD) – CONVERGING APPROACHES”. Journal of Postgraduate Medical Institute 25, no. 4 (December 5, 2011). Accessed March 29, 2024. https://www.jpmi.org.pk/index.php/jpmi/article/view/1216.