1 Department of Endocrinology, Diabetes and Metabolic Disease, University Medical Centre Ljubljana, Zaloska 7, 1000, Ljubljana, Slovenia.
2 Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000, Ljubljana, Slovenia.
3 Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (Promise), School of Medicine, University of Palermo, Palermo, Italy.
4 Department of Endocrinology, Diabetes and Metabolic Disease, University Medical Centre Ljubljana, Zaloska 7, 1000, Ljubljana, Slovenia. andrej.janez@kclj.si.
5 Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000, Ljubljana, Slovenia. andrej.janez@kclj.si.