Ziegler, S., M. Schmid, M. Bopp, G. Bosshard, and M. A. Puhan. “Continuous Deep Sedation until Death in Patients Admitted to Palliative Care Specialists and Internists: A Focus Group Study on Conceptual Understanding and Administration in German-Speaking Switzerland”. Swiss Medical Weekly, vol. 148, no. 3334, Aug. 2018, p. w14657, doi:10.4414/smw.2018.14657.