Department of Academic Diabetes, Endocrinology and Metabolism, Hull York Medical School, University of Hull, Hull, UK. Department of Endocrinology and Diabetes, Pakistan Kidney & Liver Institute and Research Centre, Lahore, Pakistan. Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology, and Immunology, Medical University of Vienna, Vienna, Austria. Hull York Medical School, University of Hull, Hull, UK. Department of Pathology, Pakistan Kidney & Liver Institute and Research Centre, Lahore, Pakistan. Department of Medicine, Pakistan Kidney & Liver Institute and Research Centre, Lahore, Pakistan. Department of Pathology, Sidra Medical and Research Center, Doha, Qatar. Weill Cornell Medical College Qatar, Doha, Qatar.