1. Team: Cytokines and NO Synthases-Immunity and Pathogenesis, Laboratory of Cellular and Molecular Biology (LBCM), Faculty of Biological Science, University of Sciences and Technology (USTHB), Algiers, Algeria
2. Institut de Biologie de Lille, UMR 8161, CNRS, Institut Pasteur de Lille, Université Lille-Nord de France, Lille, France
3. Anatomic Pathology Service, Mustapha Pacha Hospital, Algiers, Algeria
4. Department of Gastroenterology, Maillot Hospital, Algiers, Algeria
5. Service of Oncology, Rouiba Hospital, Algiers, Algeria