Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Ito Naoko and Watanabe Shuichiro,"The effect of expiratory muscle strength training on the oral and respiratory functions of community-dwelling older people: An analysis using the swallowing, oral, phonatory, and respiratory muscle function indices",Nippon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics,03009173,The Japan Geriatrics Society,2017,54,3,364-374,https://cir.nii.ac.jp/crid/1390001205025585152,https://doi.org/10.3143/geriatrics.54.364