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Statistical distribution of hearing threshold levels (HTLs) in the music students compared to HTLs in equivalent—due to age and gender—unscreened reference population (database B4 according to ISO 1999:2013) [14]. Solid lines represent median values of 10th, 50th and 90th percentiles of HTLs in reference population, while dots and whiskers represent 10th, 50th and 90th percentiles of actual HTLs among music students.
