1. Department of Population Health and Social Science, Kazakhstan's Medical University “KSPH”, Almaty, Kazakhstan
2. College of Asia Pacific Studies, Ritsumeikan Asia Pacific University, Beppu City, Japan
3. Caspian International School of Medicine, Caspian University, Almaty, Kazakhstan
4. Department of Pediatric Ophthalmology, Kazakh Eye Research Institute, Almaty, Kazakhstan