1. Department of Biomedical Engineering, King's College London, London, U.K.
2. School of Computer Science and Engineering, University of New South Wales, Sydney, NSW, Australia
3. Department of Mathematics, Indian Institute of Technology Indore, Indore, Madhya Pradesh, India
4. Department of Computer Engineering and Mathematics, University Rovira i Virgili, Tarragona, Spain
5. Technology Control Company, Riyadh, Saudi Arabia