Heritier-Barras, A.-C., D. Adler, R. Iancu Ferfoglia, B. Ricou, Y. Gasche, I. Leuchter, S. Hurst, M. Escher-Imhof, P. Pollak, and J.-P. Janssens. “Is Tracheostomy Still an Option in Amyotrophic lateral sclerosis?”. Swiss Medical Weekly, vol. 143, no. 3132, July 2013, p. w13830, doi:10.4414/smw.2013.13830.