1. Department of Pharmacognosy, School of Pharmacy, College of medicine and health sciences, University of Gondar, Gondar, Ethiopia
2. Department of Pharmacy, College of Health Sciences, Mizan-Tepi University, Mizan Teferi, Ethiopia
3. Department of Midwifery, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
4. Department of Pharmacy, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
5. Department of Pharmaceutics and Social Pharmacy, School of Pharmacy, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia