1. Department of Endocrinology, Diabetes and Metabolism, Centro Hospitalar São João (CHSJ), Faculty of Medicine, University of Porto, Porto, Portugal
2. Department of Pathology, (CHSJ), Faculty of Medicine, University of Porto, Porto, Portugal
3. Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), Faculty of Medicine, University of Porto, Porto, Portugal
4. Department of General Surgery, CHSJ, Faculty of Medicine, University of Porto, Porto, Portugal