1. Department of Biomedical Engineering, Al-Khwarizmi College of Engineering, University of Baghdad, Baghdad 47146, Iraq
2. Department of Electrical Electronic & Systems Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, UKM, Bangi, Selangor 43600, Malaysia
3. Department of Electrical and Electronic Engineering, Faculty of Engineering, Universiti Putra Malaysia, UPM, Serdang, Selangor 43400, Malaysia
4. Malaysian Research Institute of Ageing (MyAgeing™), Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
5. Department of Evolutionary Anthropology, University of Vienna, Althan Strasse 14, A-1090 Vienna, Vienna, Austria