1. Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Sana’a University, Sana’a, Yemen
2. Department of Pharmacy, Faculty of Medicine and Health Sciences, Al Nasser University, Sana’a, Yemen
3. Department of Pharmacy, Faculty of Medical Sciences, Saba University, Sana’a, Yemen
4. Department of Pharmacy, Department of Chemistry, Faculty of Sciences, Faculty of Medicine and Health Sciences, Thamar, Yemen