1. Department of Intensive Care, HabibBourguiba University Hospital, Faculté de medicine de sfax Sfax University Sfax Tunisia
2. Department of Pneumology, Hedi Chaker University Hospital, Faculté de medicine de sfax Sfax University Sfax Tunisia
3. Department of infectious diseases, Hedi Chaker University Hospital, Faculté de medicine de sfax Sfax University Sfax Tunisia
4. Department of Radiology, Hedi Chaker University Hospital, Faculté de medicine de sfax Sfax University Sfax Tunisia