de Wolf, M. J. F., M. J. H. Agterberg, A. F. M. Snik, E. A. M. Mylanus, M. K. S. Hol, and J. M. Hempel. “Vibrant Soundbridge and Bonebridge: Bilateral Application in a Child With Bilateral Congenital Ear Canal Atresia”. Current Trends in Medicine and Medical Research Vol. 3, June 2019, pp. 95-01, https://stm1.bookpi.org/index.php/ctmmr-v3/article/view/153.