Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Koyama Masao and Ishiyama Naoyoshi and Watanabe Ikuma and Satou Toru and Koshihara Yoshimi and Makino Masayoshi,A study on the test food for evaluation of masticatory ability using jelly (G-1 JELLY®),Ronen Shika Igaku,0914-3866,Japanese Society of Gerodontology,1992,6,2,126-131,https://cir.nii.ac.jp/crid/1390282679309406208,https://doi.org/10.11259/jsg1987.6.2_126