1. Department of Maxillofacial Surgery, Tashkent State Dental Institute
2. Department of Maxillofacial Surgery, Belarusian Medical Academy of Postgraduate Education
3. Department of Head and Neck Tumors, Tashkent Regional Branch of the Republican Specialized Scientific-Practical Medical Center of Oncology and Radiology
4. Department of Therapeutic Subjects No.3, Tashkent State Dental Institute
5. Medical pedagogical faculty, Samarkand State Medical Institute
6. Tokai Central Hospital
7. Department of Minimally Invasive Surgical and Medical Oncology, Fukushima Medical University