International Center of Hearing and Speech of the Institute of Physiology and Pathology of Hearing in Warsaw/Kajetany
2.Institute of Physiology and Pathology of Hearing, Mochnackiego 10, 02-042 Warsaw, Poland
3.nternational Center of Hearing and Speech of the Institute of Physiology and Pathology of Hearing in Warsaw/Kajetany
4.Institute od Sensory Organs, Kajetany, Mokra 1 05-830 Nadarzyn Poland