1. Hepatology Department, Centre Hospitalo-Universitaire Mustapha Bacha, Algiers, Algeria
2. Gastroenterology Department, Centre Hospitalo-Universitaire Mustapha Bacha, Algiers, Algeria
3. Gastroenterology Department, Etablissement Hospitalier Universitaire, Oran, Algeria
4. Gastroenterology Department, Centre Hospitalo-Universitaire Benaouda Benzerdjeb, Oran, Algeria
5. Internal Medicine Department, Etablissement Public Hospitalier Nouvel Hôpital, Khenchela, Algeria
6. Infectious Diseases Department, Etablissement Public Hospitalier, Boufarik, Algeria
7. BEKER Laboratories, Algiers, Algeria
8. Microbiology Department, Centre Hospitalo-Universitaire Mustapha Bacha, Algiers, Algeria
9. Blood Transfusion Department, Centre Hospitalo-Universitaire Mustapha Bacha, Algiers, Algeria
10. Centre Anti Cancer, CAC Batna, Batna, Algeria