University of Minnesota - Minneapolis, Center for Resuscitation Medicine, University of Minnesota School of Medicine, Center for Resuscitation Medicine, University of Minnesota School of Medicine, M Health Fairview Emergency Medical Services, Allina Health Emergency Medicinal Services, Ridgeview Emergency Medicinal Services, M Health Fairview Emergency Medical Services, Woodbury and Cottage Grove, Emergency Medical Services, Lakeview and Maplewood Emergency Medical Services, Hennepin County Emergency Medical Services, Regions Hospital, Health Partners, Regions Hospital, Health Partners, Regions Hospital, Health Partners, Regions Hospital, Health Partners, Hennepin County Emergency Medical Services, M Heath Fairview Southdale Hospital Emergency Medicine Department, Center for Resuscitation Medicine, University of Minnesota School of Medicine, Center for Resuscitation Medicine, University of Minnesota School of Medicine, University of Minnesota - Minneapolis, Department of Emergency Medicine, Medical College of Wisconsin, University of Minnesota - Minneapolis - Division of Blood and Marrow Transplantation and University of Minnesota - Minneapolis

Ohio State University (OSU), Oregon Health and Science University, University of Washington, Ohio State University (OSU), University of Pittsburgh, University of the Basque Country, University of the Basque Country, University of Texas at Dallas - Southwestern Medical Center, Ohio State University (OSU), University of the Basque Country, Department of Emergency Medicine, Medical College of Wisconsin, University of Pittsburgh and University of Washington

Ohio State University (OSU), University of the Basque Country, University of the Basque Country, University of Washington, Department of Emergency Medicine, Medical College of Wisconsin, Oregon Health and Science University, Oregon Health and Science University, Ohio State University (OSU), Ohio State University (OSU), affiliation not provided to SSRN, affiliation not provided to SSRN, University of Pittsburgh, University of Washington, University of Alabama at Birmingham, affiliation not provided to SSRN and University of Texas at Dallas - Southwestern Medical Center