Relationship between the Second to Fourth Finger Length Ratio and Calcaneus Quantitative Ultrasound by Yoko Takahata, Kumi Hirokawa

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Association between work environment changes due to the COVID‐19 pandemic and post‐traumatic stress disorder in Japanese workers during the emergency declaration by Tetsuro Noda, Kumi Hirokawa, Kyoko Tokunaga

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Associations of testosterone and cortisol concentrations with sleep quality in Japanese male workers by Kumi Hirokawa, Yasuhito Fujii, Toshiyo Taniguchi, Morihiro Tsujishita

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Eye-blink behaviors in 71 species of primates. by Hideoki Tada, Yasuko Omori, Kumi Hirokawa, Hideki Ohira, Masaki Tomonaga

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Cardiovascular reactivity to acute stress associated with sickness absence among Japanese men and women: A prospective study by Kumi Hirokawa, Tetsuya Ohira, Mitsugu Kajiura, Hironori Imano, Akihiko Kitamura, Masahiko Kiyama, Takeo Okada, Hiroyasu Iso

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Occupational status and job stress in relation to cardiovascular stress reactivity in Japanese workers by Kumi Hirokawa, Tetsuya Ohira, Mako Nagayoshi, Mitsugu Kajiura, Hironori Imano, Akihiko Kitamura, Masahiko Kiyama, Takeo Okada, Hiroyasu Iso

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