Affiliation: | (1) Department of Geriatric, Medicine, Osaka University Medical School, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan, JP;(2) Department of Pathology, Osaka University Medical School, Osaka, Japan, JP;(3) Department of Otolaryngology, Osaka University Medical School, Osaka, Japan, JP;(4) Department of Medicine, Sumitomo Hospital, Osaka, Japan, JP;(5) Department of Otolaryngology, Sumitomo Hospital, Osaka, Japan, JP |