1. Kyiv City Clinical Hospital-9, Kyiv, Ukraine
2. Medical Center of Clinical Immunology and Allergology, Lviv, Ukraine
3. Bogomolets National Medical University, Kyiv, Ukraine
4. Communal Institution «Dniprovsk Clinical Association of Emergency Medical Care», Dnipro, Ukraine
5. Institute of Otolaryngology of National Academy of Medical Sciences, Kyiv, Ukraine
6. Ivano-Frankovsky National Medical University, Ivano-Frankivsk, Ukraine
7. Kyiv City Clinical Hospital, Kyiv, Ukraine
8. Institute of Pediatrics, Obstetrics and Gynecology, Kyiv, Ukraine
9. SI Institute of Otolaryngology n.a. Prof. O.S. Kolomiychenko of NAMS, Kyiv, Ukraine
10. Shupyk National University of Health of Ukraine, Kyiv, Ukraine