1. Sultan Qaboos Comprehensive Cancer Care and Research Center Division of Infectious Diseases, Department of Internal Medicine, , PO Box 566, Al Khoud, Muscat, Sultanate of Oman
2. Sultan Qaboos Comprehensive Cancer Care and Research Center Division of Oncology, Department of Internal Medicine, , PO Box 566, Al Khoud, Muscat, Sultanate of Oman
3. Sultan Qaboos Comprehensive Cancer Care and Research Center Department of Laboratory Medicine, , PO Box 566, Al Khoud, Muscat, Sultanate of Oman