Published on in Vol 9, No 7 (2020): July
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/17826, first published
.
1 Department of Anesthesiology and Critical Care, Puerta de Hierro Majadahonda University Hospital, Madrid, Spain
2 Department of Cardiovascular Surgery, Puerta de Hierro Majadahonda University Hospital, Majadahonda, Madrid, Spain