1 Department of Emergency Medicine, Department of Health Science Research, Division of Health Care Policy and Research, Mayo Clinic, Rochester, MN.
2 Department of Emergency Medicine, Mayo Clinic, Rochester, MN; Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
3 Department of Emergency Medicine, Mayo Clinic, Rochester, MN.
4 Knowledge Synthesis and Kern Center for the Science of Health Care Delivery, Division of Preventive, Occupational and Aerospace Medicine, Department of Medicine, Mayo Clinic, Rochester, MN.