Gaertner, K., S. Wildbolz, V. Speidel, A. K. Exadaktylos, W. E. Hautz, and M. Müller. “Prevalence and Practice of Opioid Prescription at a Swiss Emergency Department: 2013–2017”. Swiss Medical Weekly, vol. 150, no. 1516, Apr. 2020, p. w20202, doi:10.4414/smw.2020.20202.