| Affiliation: | 1. Department of Infectious Diseases, Sapporo City General Hospital, 13 Chome 1-1, Kita 11 Jonishi, Chuo-ku, Sapporo, Hokkaido 060-8604, Japan;2. Division of Geriatric Medicine, Department of Medicine, University of Pittsburgh, 3471 Fifth Avenue, Kaufmann Building Suite 500, Pittsburgh, PA 15213, USA;3. Division of Infectious Diseases and HIV Medicine, Department of Medicine, Case Western Reserve University, 11100 Euclid Avenue, Cleveland, OH 44195-5029, USA;4. Geriatric Research, Education, and Clinical Center (GRECC), Specialty Care Center of Innovation, Louis Stokes Cleveland Veterans Affairs Medical Center, 111C(W), 10701 East Boulevard, Cleveland, OH 44106, USA |
