1. SHUPYK NATIONAL HEALTHCARE UNIVERSITY OF UKRAINE, KYIV, UKRAINE; INSTITUTE OF PEDIATRICS, OBSTETRICS AND GYNECOLOGY OF THE NATIONAL ACADEMY OF MEDICAL SCIENCES OF UKRAINE, KYIV, UKRAINE
2. ODESA NATIONAL MEDICAL UNIVERSITY, ODESA, UKRAINE
3. DOCTOR NIKOLAEV MEDICAL CENTER, DNIPRO, UKRAINE
4. LVIV MEDICAL INSTITUTE, LVIV, UKRAINE
5. NATIONAL PIROGOV MEMORIAL MEDICAL UNIVERSITY, VINNYTSIA, UKRAINE
6. KYIV REGIONAL MATERNITY HOSPITAL, KYIV, UKRAINE