- Markos G Kashiouris: Department of Internal Medicine, Division of Pulmonary Disease and Critical Care Medicine, Virginia Commonwealth University School of Medicine, 1200 E Broad St., P.O. Box 980050, Richmond, VA 23298, Canada.
- Michael L'Heureux: Department of Internal Medicine, Division of Pulmonary Disease and Critical Care Medicine, Virginia Commonwealth University School of Medicine, 1200 E Broad St., P.O. Box 980050, Richmond, VA 23298, Canada.
- Casey A Cable: Department of Internal Medicine, Division of Pulmonary Disease and Critical Care Medicine, Virginia Commonwealth University School of Medicine, 1200 E Broad St., P.O. Box 980050, Richmond, VA 23298, Canada.
- Bernard J Fisher: Department of Internal Medicine, Division of Pulmonary Disease and Critical Care Medicine, Virginia Commonwealth University School of Medicine, 1200 E Broad St., P.O. Box 980050, Richmond, VA 23298, Canada.
- Stefan W Leichtle: Department of Surgery, Division of Acute Care Surgical Services, Virginia Commonwealth University School of Medicine, 1200 E Broad St., P.O. Box 980454, Richmond, VA 23298, Canada.
- Alpha A Fowler: Department of Internal Medicine, Division of Pulmonary Disease and Critical Care Medicine, Virginia Commonwealth University School of Medicine, 1200 E Broad St., P.O. Box 980050, Richmond, VA 23298, Canada.