[1] Univ Med & Pharm Craiova, Dept Internal Med, Craiova 200349, Romania
[2] Univ Med & Pharm Craiova, Dept Gastroenterol, Craiova 200349, Romania
[3] Emergency Clin Cty Hosp Craiova, Dept Internal Med, 1 Tabaci St, Craiova 200642, Romania
[4] Univ Med & Pharm Craiova, Dept Bacteriol Virol Parasitol, 2-4 Petru Rares St, Craiova 200349, Romania
[5] Univ Med & Pharm Craiova, Dept Analyt Chem, Craiova 200349, Romania