1. Dar Almaraa Fertility and Gynecology Center; Cairo Egypt
2. TobLap Company for Laboratories Consultations and Training; Cairo Egypt
3. Department of Urology; Faculty of Medicine; Benha University; Benha Egypt
4. Department of Urology; Glickman Urological and Kidney Institute; Cleveland Clinic; Cleveland OH USA
5. American Center for Reproductive Medicine; Cleveland Clinic; Cleveland OH USA