Mariam Baloch1, Abdul M Baig2, Rohan K Ochani3. 1. Dow Medical College, Dow University of Health Sciences (DUHS), Karachi, Sindh, Pakistan. 2. Department of Biological and Biomedical Sciences, Aga Khan University, Karachi, Sindh, Pakistan. 3. Department of Internal Medicine, Dow University of Health Sciences (DUHS), Karachi, Sindh, Pakistan - rohanochani@gmail.com.