1. Global Health and Tropical Medicine, Institute of Hygiene and Tropical Medicine, NOVA University of Lisbon, Lisbon, Portugal
2. Center of Biostatistics for Clinical Epidemiology, School of Medicine and Surgery, University of Milano–Bicocca
3. Unit of Clinical Epidemiology, IRCCS Istituto Ortopedico Galeazzi
4. Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
5. Department of Occupational Science and Occupational Therapy
6. Rehabilitation Sciences Institute
7. Department of Physical Therapy, University of Toronto, Toronto
8. School of Rehabilitation Science, McMaster University, Hamilton, Ont.