1. University of Southern Queensland; Ipswich Australia
2. School of Health and Wellbeing; University of Southern Queensland; Ipswich Australia
3. Unidad de Medicina Física y Rehabilitación Región Centro; Instituto Mexicano del seguro Social; Mexico City Mexico
4. Department of General Internal Medicine; The University of Texas, MD Anderson Cancer Center; Houston Texas USA
5. Department of Health Services Research; The University of Texas, MD Anderson Cancer Center; Houston Texas USA