1. GRIHO Research Group, Universitat de Lleida, Jaume II St. 69, 25001 Lleida, Spain
2. Facultat de Dret, Economia I Turisme (FDET), Universitat de Lleida, Jaume II St. 73, 25001 Lleida, Spain
3. School of Population Health, Curtin University, Kent Street Bentley, P.O. Box U1987, Perth 6102, Australia
4. Department of Agricultural Economics, University of Costa Rica, San José 11501-2060, Costa Rica
5. Faculty of Nursing and Physiotherapy, Universitat de Lleida, Montserrat Roig 2, 25006 Lleida, Spain
6. Departamento de Fisioterapia, Universidad de Málaga, Andalucía TECH, Arquitecto Penalosa 3, 25009 Málaga, Spain