Minia University Hospitals, Minia, Egypt
Damietta University, Damietta, Egypt
Mansura university, Mansura, Dakhalia, Egypt
Egyptian liver hospital, Mansoura, Ansoura, Egypt
Helwan University, Helwan, Cairo, Egypt
Beni-Suef University Hospital, Banī Suwayf, Beni Suef, Egypt
Egyptian liver hospital, Mansoura, Egypt
Critical Care Medicine Department - Cairo University Hospitals., Cairo, Egypt
Theodor Bilharz Research Institute, Cairo, Egypt
Al demerdash hospital at oncology departement, Cairo, Egypt