1 Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, MD; Malone Center for Engineering in Healthcare, Johns Hopkins University Whiting School of Engineering, Baltimore, MD; Beckman Coulter Diagnostics, Brea, CA. Electronic address: hinson@jhmi.edu.
2 Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, MD; Malone Center for Engineering in Healthcare, Johns Hopkins University Whiting School of Engineering, Baltimore, MD; Beckman Coulter Diagnostics, Brea, CA.
3 Beckman Coulter Diagnostics, Brea, CA.
4 Department of Emergency Medicine, Yale University School of Medicine, New Haven, CT.
5 Department of Emergency Medicine, Yale University School of Medicine, New Haven, CT; Department of Biomedical Informatics and Data Science, Yale University School of Medicine, New Haven, CT.