1. Chemistry Department, The Gifted Students’ School in Al-Najaf, Ministry of Education, Najaf, Iraq
2. Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq
3. Chemistry Department, Faculty of Science and Arts, Tokat Gaziosmanpasa University, Tokat, Turkey
4. Urology and Nephrology Center, Mansoura University, Mansoura, Egypt
5. Department of Chemistry, University of Turbat, Balochistan, Pakistan