1. Department of Medicine, Jinnah Postgraduate Medical Center, Karachi 75230, Pakistan
2. Department of Urology, Glan Clwyd Hospital—Betsi Cadwaladr University Health Board, Denbighshire LL16, Wales, UK
3. Department of Medicine, Jinnah Sindh Medical University, Karachi 75950, Pakistan
4. Department of Psychiatry, Liaquat University of Medical and Health Sciences, Jamshoro, Sindh 75950, Pakistan
5. Department of Medicine, Jinnah Postgraduate Medical Centre, Karachi 75640, Pakistan
6. Department of Medicine, Liaquat College of Medicine and Dentistry, Karachi 75220, Pakistan
7. Department of Medicine, Dow University of Health Sciences, Karachi 75500, Pakistan