Draganova, R.* et al. Fetal auditory evoked responses to onset of amplitude modulated sounds. A fetal magnetoencephalography (fMEG) study. Hear. Res. 363, 70-77 (2018) Happich, M. & von Lengerke, T. Valuing the health state 'tinnitus': Differences between patients and the general public. Hear. Res. 207, 50-58 (2005)