Medical Clinic and Gastroenterology;
University Hospital;
050094 Bucharest;
Romania;
Department of Cellular and Molecular Medicine;
"Carol Davila" University of Medicine and Pharmacy;
050094 Bucharest;
Romania;
Department of Internal Medicine and Réseau d'Epidémiologie Clinique International Francophone (RECIF);
Colentina Hospital;
020125 Bucharest;
Romania;
Institute of Mathematical Statistics and Applied Mathematics;
050711 Bucharest;
Romania;