Keidser, G., H.R. Dillon, M. Flax, T. Ching, and S. Brewer. “The NAL-NL2 Prescription Procedure”. Audiology Research 1, no. 1 (March 23, 2011): e24. Accessed November 18, 2019. https://audiologyresearch.org/index.php/audio/article/view/audiores.2011.e24.