Items where Author is "Butt, Nasir Farooq"
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Khan, Dur Muhammad and Ullah, Aziz and Randhawa, Fawad Ahmad and Iqtadar, Somia and Butt, Nasir Farooq and Waheed, Khadija (2017) Role of Vitamin D in reducing number of acute exacerbations in Chronic Obstructive Pulmonary Disease (COPD) patients. Pakistan Journal of Medical Sciences, 33 (3). ISSN 1681-715X