1 Department of Anesthesiology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA. Electronic address: Kenichi-Tanaka@ouhsc.edu.
2 Department of Pathology, and the Department of Pediatrics, Center for Blood Oxygen Transport and Hemostasis University of Maryland School of Medicine, Baltimore, Maryland, USA.
3 Department of Anesthesiology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA; Department of Surgery and Anesthesiology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA.