1. KHARKIV MEDICAL ACADEMY OF POSTGRADUATE EDUCATION, KHARKIV, UKRAINE
2. NATIONAL AEROSPACE UNIVERSITY H.E. ZHUKOVSKY «KHARKIV AVIATION INSTITUTE», KHARKIV, UKRAINE
3. STATE INSTITUTION OF SCIENCE «RESEARCH AND PRACTICAL CENTER OF PREVENTIVE AND CLINICAL MEDICINE» STATE ADMINISTRATIVE DEPARTMENT, KYIV, UKRAINE
4. LESYA UKRAINKA EASTERN EUROPEAN NATIONAL THERAPY, LUTSK, UKRAINE