1 Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN; Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN. Electronic address: [email protected].
2 Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN; Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN.
3 Anesthesiology Institute, Center for Critical Care and Department of Outcomes Research, Cleveland Clinic, Cleveland, OH.
4 La Jolla Pharmaceutical Company, San Diego, CA.
5 Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Emory University School of Medicine, Atlanta, GA.
6 Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN; Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, MN.