title: The authors reply.
authors.affiliation: Center for Health Services Research and Section of Hospital Medicine, Division of General Internal Medicine and Public Health, Vanderbilt University, Nashville, TN, and Geriatric Research, Education and Clinical Center (GRECC) Service, Tennessee Valley Healthcare System, Nashville TN; Center for Health Services Research and Division of Allergy, Pulmonary, and Critical Care Medicine in the Department of Medicine, Vanderbilt University, Nashville, TN, and Geriatric Research, Education and Clinical Center (GRECC) Service, Tennessee Valley Healthcare System, Nashville TN; Center for Health Services Research and Division of Allergy, Pulmonary, and Critical Care Medicine in the Department of Medicine, Vanderbilt University, Nashville, TN, and Geriatric Research, Education and Clinical Center (GRECC) Service, Tennessee Valley Healthcare System, Nashville TN.
authors.forename: Eduard E
authors.initials: EE
authors.lastname: Vasilevskis
authors.forename: E Wesley
authors.initials: EW
authors.lastname: Ely
authors.forename: Timothy D
authors.initials: TD
authors.lastname: Girard