From the Perioperative Medicine and Intensive Care, Karolinska University Hospital, Huddinge, Stockholm, Sweden; and Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institute, Stockholm, Sweden.
Accepted for publication August 8, 2018.
The author declares no conflicts of interest.
Reprints will not be available from the author.
Address correspondence to Erzsebet Bartha, MD, PhD, Perioperative Medicine and Intensive Care, K32 Karolinska University Hospital Huddinge, SE-141 86, Stockholm, Sweden. Address e-mail to firstname.lastname@example.org.