Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) 白井 はる奈 and 藤原 瑞穂 and 宮口 英樹 and 宮前 珠子,Exploratory research into expression of laugh and smile in elders with severe dementia,作業療法,02894920,株式会社医学書院,2005-06-15,24,3,253-261,https://cir.nii.ac.jp/crid/1390002209975703936,https://doi.org/10.11477/mf.6003900719