1. Department of Physical Rehabilitation, Centro Hospitalar Universitário do Porto, Porto, Portugal
2. CINTESIS, Center for Health Technology and Services Research, Faculty of Medicine, University of Porto, Porto, Portugal
3. Department of Medicine, Faculty of Medicine, University of Porto, Porto, Portugal
4. Department of Cardiology, Centro Hospitalar Universitário de São João, Porto, Portugal
5. Department of Physical Rehabilitation, Centro Hospitalar Universitário de São João, Porto, Portugal
6. Department of Community Medicine, Information and Health Decision Sciences, Faculty of Medicine, University of Porto, Portugal