1. “Grigore T. Popa” University of Medicine and Pharmacy, Clinical Centre of Diabetes, Nutrition and Metabolic Diseases, “Sf. Spiridon” Clinical Hospital, Iași, Romania
2. “Grigore T. Popa” University of Medicine and Pharmacy, Institute of Gastroenterology and Hepatology, “Sf. Spiridon” Clinical Hospital, Iași, Romania
3. Gastroenterology, “Victor Babes” University of Medicine and Pharmacy Timișoara, Romania