Oral functions are associated with muscle strength and physical performance in old-old Japanese

Yuki Murotani, Kodai Hatta, Toshihito Takahashi, Yasuyuki Gondo, Kei Kamide, Mai Kabayama, Yukie Masui, Tatsuro Ishizaki, Ken Ichi Matsuda, Yusuke Mihara, Motoyoshi Fukutake, Yuichi Nishimura, Suzuna Akema, Hiromasa Hagino, Kotaro Higashi, Hitomi Togawa, Yoshinobu Maeda, Soshiro Ogata, Paula Moynihan, Kazunori Ikebe