1. Private Practice, Grozny, Chechnya, Russian Federation
2. International Virotherapy Center, Research and Development, Riga, Latvia
3. Global Virotherapy Cancer Clinic, Jūrmala, Latvia
4. Department of Radiology, Pauls Stradiņš Clinical University Hospital, Riga, Latvia
5. Department of Pathology, Faculty of Medicine, University of Latvia, Riga, Latvia