Relationships between cystatin C and creatinine‐based eGFR with low tongue pressure in Japanese rural community‐dwelling older adults oleh Hiroshi Kusunoki, Yoko Hasegawa, Shotaro Tsuji, Yosuke Wada, Kayoko Tamaki, Koutatsu Nagai, Takara Mori, Ryota Matsuzawa, Hiromitsu Kishimoto, Hideo Shimizu, Ken Shinmura