1. Department of Medicine The University of Tennessee Health Sciences Center Memphis TN USA
2. Foundation University Medical College Islamabad Pakistan
3. Department of Medical Intensive Care Holy Family Hospital Rawalpindi Pakistan
4. Department of Medicine King Edward Medical University Lahore Pakistan
5. Department of Medicine The University of Arizona Tucson AZ USA
6. Department of Medicine Crieghton University Omaha NE USA
7. Department of Hematology & Medical Oncology Boston University Medical Center Boston MA USA
8. Taussig Cancer Center Cleveland Clinic Cleveland OH USA