1 | Institute of Physiology and Pathology of Hearing, ul. Zgrupowania AK “Kampinos” 1, 01-943 Warsaw, Poland |
2 | World Hearing Center, Mokra 17, Kajetany 05-830 Nadarzyn, Poland |
3 | Institute of Sensory Organs, Mokra 1, Kajetany 05-830 Nadarzyn, Poland |
4 | Medical University of Warsaw, Otolaryngology and Rehabilitation Clinic of the Physiotherapy Division of the
Second Faculty of Medicine, Żwirki i Wigury 61, 02-091 Warsaw, Poland |