1. Department of Anesthesia and Surgical Intensive Care, Theodor Bilharz Research Institute, Ministry of Higher Education and Scientific Research, El Nile St., Warrak El Hadar, P.O. Box 30, Imbaba, Giza, 12411, Egypt
2. Department of Hematology, Theodor Bilharz Research Institute, Ministry of Higher Education and Scientific Research, El Nile St., Warrak El Hadar, P.O. Box 30, Imbaba, Giza, 12411, Egypt
3. Department of Anesthesia, Faculty of Medicine, Cairo University, Ministry of Higher Education and Scientific Research, Kasr Al Ainy St., Al Manial, Cairo, 11562, Egypt
4. Department of Surgery, Theodor Bilharz Research Institute, Ministry of Higher Education and Scientific Research, El Nile St., Warrak El Hadar, P.O. Box 30, Imbaba, Giza, 12411, Egypt