A Novel Method for Identifying Frailty and Quantifying Muscle Strength Using the Six-Minute Walking Test by Yunjin Zhang, Minoru Morita, Tsunahiko Hirano, Keiko Doi, Xin Han, Kazuto Matsunaga, Zhongwei Jiang

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Orthogonality-Constrained CNMF-Based Noise Reduction with Reduced Degradation of Biological Sound by Naoto Murakami, Shota Nakashima, Katsuma Fujimoto, Shoya Makihira, Seiji Nishifuji, Keiko Doi, Xianghong Li, Tsunahiko Hirano, Kazuto Matsunaga

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Kinetics of COVID-19 mRNA primary and booster vaccine-associated neutralizing activity against SARS-CoV-2 variants of concern in long-term care facility residents: a prospective lo... by Tomoyuki Kakugawa, Keiko Doi, Yuichi Ohteru, Hiroyuki Kakugawa, Keiji Oishi, Masahiro Kakugawa, Tsunahiko Hirano, Yusuke Mimura, Kazuto Matsunaga

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Kinetics of pro- and anti-inflammatory spike-specific cellular immune responses in long-term care facility residents after COVID-19 mRNA primary and booster vaccination: a prospect... by Tomoyuki Kakugawa, Yusuke Mimura, Yuka Mimura-Kimura, Keiko Doi, Yuichi Ohteru, Hiroyuki Kakugawa, Keiji Oishi, Masahiro Kakugawa, Tsunahiko Hirano, Kazuto Matsunaga

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Correlation between frailty and reduction in cortical thickness in patients with chronic obstructive pulmonary disease by Ayumi Fukatsu-Chikumoto, Tsunahiko Hirano, Shun Takahashi, Takuya Ishida, Kasumi Yasuda, Tomohiro Donishi, Kazuyoshi Suga, Keiko Doi, Keiji Oishi, Shuichiro Ohata, Yoriyuki Murata, Yoshikazu Yamaji, Maki Asami-Noyama, Nobutaka Edakuni, Tomoyuki Kakugawa, Kazuto Matsunaga

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