1. Department of Internal Medicine, Hospital de Santa Maria, Lisbon, Portugal.
2. Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), Porto, Portugal.
3. Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal.
4. Service of Endocrinology, Diabetology and Metabolism, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
5. Faculty of Medicine, University of Porto, Porto, Portugal.
6. Department of Endocrinology, Hospital of S. João, Porto, Portugal.
7. Service of Clinical Pathology, Institute of Pathology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
8. Department of Internal Medicine, Division of Endocrinology, School of Medicine, University of Patras, Patras, Greece.
9. Department of Pathology, Faculty of Medicine, University of Porto, Porto, Portugal.