1 Department of Emergency Medicine, Division of Pulmonary and Critical Care Medicine, Hennepin County Medical Center, Minneapolis, MN, USA; Department of Medicine, Division of Pulmonary and Critical Care Medicine, Hennepin County Medical Center, Minneapolis, MN, USA; Department of Emergency Medicine, Hennepin County Medical Center, Minneapolis, MN, USA. Electronic address: [email protected].
2 Department of Emergency Medicine, Hennepin County Medical Center, Minneapolis, MN, USA.