1. College of Medicine, QU Health, Qatar University, Doha 2713, Qatar
2. College of Medicine, Mansoura University, Mansoura 35516, Egypt
3. School of Medicine, Newgiza University, Giza 12577, Egypt
4. Faculty of Medicine, Alexandria University, Alexandria 21544, Egypt
5. Kuwait Cancer Centre, Sabah Medical Region, Shuwaikh 1031, Kuwait
6. Hematology Section, Medical Oncology, National Center for Cancer Care and Research (NCCCR), Hamad Medical Corporation, Doha 3050, Qatar