1. Department of Medicine; Universidad de Chile; Santiago Chile
2. Health Technology Assessment Unit; Hospital Universitario Ramón y Cajal (IRYCIS). CIBER Epidemiology and Public Health (CIBERESP); Madrid Spain
3. Clinical Biostatistics Unit; Hospital Universitario Ramón y Cajal (IRYCIS). CIBER Epidemiology and Public Health (CIBERESP); Madrid Spain
4. Institute of Metabolism and Systems Research; University of Birmingham; Birmingham UK
5. Institute of Cardiovascular and Medical Sciences; University of Glasgow; Glasgow UK
6. Facultad de Medicina, Departamento de Ciencias de la Rehabilitación & CIGES; Universidad de La Frontera; Temuco Chile