1 From the Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland.
2 Abbott Laboratories, Pleasanton, California.
3 Hyperfine Inc, Guilford, Connecticut.
4 Division of Neurosciences Critical Care, Departments of Neurology, Surgery, Anesthesiology and Critical Care Medicine, Johns Hopkins Hospital, Baltimore, Maryland.
5 Division of Pulmonary and Critical Care Medicine, Johns Hopkins Hospital, Baltimore, Maryland.