1. Department of Pharmaceutical Chemistry
2. Department of Pharmacognosy, College of Pharmacy, King Saud University
RiyadhSaudi Arabia
3. Department of Organic Chemistry, Faculty of Pharmacy, Al-Azhar University
CairoEgypt
4. Department of Pharmacology and Toxicology, College of Pharmacy
5. Botany and Microbiology Department, Faculty of Science
6. Chemistry Department, Faculty of Science, King Saud University
RiyadhSaudi Arabia