1. Internal Medicine Department Centro Hospitalar e Universitário São João Porto Portugal
2. Medicine Faculty Porto University Porto Portugal
3. Cardiovascular R&D Unit, Medicine Faculty Porto University Porto Portugal
4. Heart Failure Clinic of the Internal Medicine Department Centro Hospitalar e Universitário São João Porto Portugal
5. Endocrinology Department Centro Hospitalar do Tâmega e Sousa Porto Portugal
6. Internal Medicine Department Hospital CUF Porto Porto Portugal
7. Clinical Pathology Department Centro Hospitalar e Universitário São João Porto Portugal