Published on in Vol 21, No 7 (2019): July
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/13041, first published
.
1 Institute of Anesthesiology, University and University Hospital Zurich, Zurich, Switzerland
2 Institute of Anesthesiology Kantonsspital Winterthur, Winterthur, Switzerland
*these authors contributed equally