Self-assessed Impairment of Masticatory Ability and Lower Serum Albumin Levels Among Community-dwelling Elderly Persons oleh Shingo Moriya, Kanchu Tei, Tsukasa Muramatsu, Ayumi Murata, Masumi Muramatsu, Kenji Notani, Yuichi Ando, Akiko Eto, Nobuo Inoue, Hiroko Miura