Affiliation: | (1) Department of Anesthesiology, Tokyo University Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan;(2) Department of Health Management and Policy, Tokyo University Graduate School of Medicine, Tokyo, Japan;(3) Department of Health Quality Assessment, Tokyo University Graduate School of Medicine, Tokyo, Japan;(4) Department of Preventive Medicine and Community Health, University of Occupational and Environmental Health, Kitakyushu, Japan |