1 School of Health and Society, University of Salford, Greater Manchester, UK. Electronic address: p.hogg@salford.ac.uk.
2 College of Applied Medical Sciences, Taibah University, Medina 42353, Saudi Arabia.
3 School of Health Sciences (HESAV), University of Applied Sciences and Arts Western Switzerland (HES-SO), Av. de Beaumont 21, 1011, Lausanne, Switzerland.
4 Department of Medical Imaging and Radiation Therapy, Hanze University of Applied Sciences, Groningen, Netherlands.