Joseph Varon, MD, FACP, FCCP, FCCMDepartment of Critical Care Services, University General Hospital;Department of Acute and Continuing Care,The University of Texas Health Science CenterHouston, TexasUSA Robert E Fromm Jr., MD, MPH, FACP, FCCP, FCCMMaricopa Integrated Health SystemDepartment of Internal Medicine;University of Arizona College of MedicinePhoenix, ArizonaUSA