1. Sumy State University, Sumy, Ukraine
2. Faculty of Medicine and Health Sciences, University of Putra Malaysia, Serdang, Malaysia
3. King Edward Medical University, Lahore, Pakistan
4. University of Ghana Medical School, Accra, Ghana
5. Rowan University School of Osteopathic Medicine, Stratford, NJ
6. Drexel University College of Medicine, Philadelphia, PA
7. Faculty of medicine, Official University of Bukavu, Bukavu, DR Congo
8. Department of General Surgery, Istanbul Medeniyet University, Istanbul, Turkey