1. Department of Pharmaceutical Biology, Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Mainz, Germany
2. Salah Wanasi Foundation for Cancer Research and Control, Khartoum, Sudan
3. Tayba Cancer Centre, Khartoum, Sudan
4. Federal Government of Sudan, Khartoum, Sudan
5. Department of Pharmacognosy, University of Khartoum, Khartoum, Sudan
6. Faculty of Medicine, International University of Africa, Khartoum, Sudan