1. Department of Medicine and Therapeutics, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen, UK
2. Department of Biochemistry, Faculty of Medicine and Medical Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
3. Department of Molecular and Cell Biology, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen, UK
4. Department of Pathology, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen, UK
5. Department of Medicine, Washington University, St. Louis, USA