1 Carol Davila University of Medicine and Pharmacy Elias Hospital Endocrinology Discipline/ Elias Hospital, 17 Marasti bvd, Bucharest 7900, Romania
2 Department of Epidemiology, Carol Davila University of Medicine and Pharmacy Epidemiology Discipline / National Institute for Development and Research in Microbiology and Imunology “Cantacuzino†Bucharest, Spl. Independentei nr. 103, Sector 5, Bucharest, Code 050096, Romania