1. SHUPYK NATIONAL MEDICAL ACADEMY OF POSTGRADUATE EDUCATION, KYIV, UKRAINE
2. ODESA NATIONAL MEDICAL UNIVERSITY, ODESA, UKRAINE
3. INSTITUTE OF PEDIATRICS, OBSTETRICS AND GYNECOLOGY OF THE NATIONAL ACADEMY OF MEDICAL SCIENCES OF UKRAINE, KYIV, UKRAINE
4. BOGOMOLETS NATIONAL MEDICAL UNIVERSITY, KYIV, UKRAINE
5. UKRAINIAN MEDICAL STOMATOLOGICAL ACADEMY, POLTAVA, UKRAINE
6. BROVARSKA MULTIDISCIPLINARY DISTRICT HOSPITAL, BROVARY, UKRAINE