Home economics and life sciences Chewing Function Enhancement Book for Adults and the Elderly. This book shows knowledge and ideas that can be used in practice.
※Please note that product information is not in full comprehensive meaning because of the machine translation.
Japanese title: 単行本(実用) 家政学・生活科学 成人-高齢者向け咀嚼機能アップBOOK 実践に活かせる知識・アイデアがわかる本