1. Endocrine Department, Santa Maria Hospital, Lisbon, Portugal
2. Endocrine University Clinic, Lisbon Medical School, Lisbon, Portugal
3. Internal Medicine Department, Jacobi Medical Center and Albert Einstein College of Medicine, New York, NY, USA
4. Clinical Pathology Department, Santa Maria Hospital, Lisbon, Portugal
5. Internal Medicine Department, Santa Maria Hospital, Lisbon, Portugal
6. Internal Medicine University Clinic, Lisbon Medical School, Lisbon, Portugal