1. Department of Urology, School of Medicine, Ibb University, Ibb, Yemen
2. Vice Chancellor of Ibb University, School of Medicine, Ibb University, Ibb, Yemen
3. Department of Internal Medicine, Faculty of Medicine, Hadhramaut University, Hadhramaut, Yemen
4. Department of General Surgery, School of Medicine, Ibb University, Ibb, Yemen *Email: saifalighabisha@yahoo.com
5. Department of Internal Medicine, School of Medicine, Ibb University, Ibb, Yemen