1. Department of Clinical Hematology Royal Hospital Muscat Oman
2. Infection Diseases Unit Royal Hospital Muscat Oman
3. Department of Anesthesia and Critical Care Royal Hospital Muscat Oman
4. Department of Nephrology Royal Hospital Muscat Oman
5. Department of Pharmacology & Clinical Pharmacy, College of Medicine & Health Sciences Sultan Qaboos University Muscat Oman