1. Department of Internal Medicine, The University of Texas Health Science Center at Houston, Houston, Texas, USA
2. Department of Internal medicine, Kasr Al Aini Hospital, Cairo University, Cairo, Egypt
3. Information Technology Department, Orillia Soldiers’ Memorial Hospital, Orillia, Ontario, Canada
4. Andrology Department, Cairo University School of Medicine, Cairo, Egypt
5. Department of Radiology, The University of Texas Health Science Center at Houston, Houston, Texas, USA