Srithumsuk, Werayuth
Kabayama, Mai
Gondo, Yasuyuki
Masui, Yukie
Akagi, Yuya
Klinpudtan, Nonglak
Kiyoshige, Eri
Godai, Kayo
Sugimoto, Ken
Akasaka, Hiroshi
Takami, Yoichi
Takeya, Yasushi
Yamamoto, Koichi
Ikebe, Kazunori
Ogawa, Madoka
Inagaki, Hiroki
Ishizaki, Tatsuro
Arai, Yasumichi
Rakugi, Hiromi
Kamide, Kei
Funding for this research was provided by:
Ministry of Education, Culture, Sports, Science, and Technology of Japan (19K07888, 19K11138)
Article History
Received: 24 September 2019
Accepted: 10 January 2020
First Online: 22 January 2020
Ethics approval and consent to participate
: The SONIC study was approved by the Institutional Review Board of Osaka University Graduate School of Medicine, Dentistry, and Human Sciences (Osaka, Japan) and the Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology (Tokyo, Japan). Informed consent was obtained from all study participants on site prior to starting the survey. Participants have been informed of the research objectives and have given their written consent. Their anonymity has been guaranteed.
: Not applicable.
: The authors declare that they have no competing interests.