Activities of medical centers for athletes and spectators at cycling track events in the Tokyo 2020 Olympic and Paralympic Games by Youichi Yanagawa, Takuya Muto, Masami Shakagori, Atsuhiko Terakado, Tsukasa Kumai

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Combination Therapy of Autologous Protein Solution and Extracorporeal Shock Wave Therapy for Severe Knee Osteoarthritis by Shinya Nakasato, Tsukasa Kumai, Tomoki Mitsuoka, Takeshi Teramura, Masao Akagi

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Pain Relief after Extracorporeal Shock Wave Therapy for Patellar Tendinopathy: An Ultrasound Evaluation of Morphology and Blood Flow by Toshihiro Maemichi, Toshiharu Tsutsui, Takumi Okunuki, Takuma Hoshiba, Tsukasa Kumai

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Diclofenac–hyaluronate conjugate (diclofenac etalhyaluronate) intra-articular injection for hip, ankle, shoulder, and elbow osteoarthritis: a randomized controlled trial by Toshikazu Kubo, Tsukasa Kumai, Hiroyasu Ikegami, Kazuyuki Kano, Megumi Nishii, Takayuki Seo

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Endoscopic Resection of a Talocalcaneal Coalition Using a Posteromedial Approach by Koji Hayashi, M.D., Tsukasa Kumai, M.D., Yasuhito Tanaka, M.D.

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Effects of Achilles Tendon Moment Arm Length on Insertional Achilles Tendinopathy by Takuma Miyamoto, Yasushi Shinohara, Tomohiro Matsui, Hiroaki Kurokawa, Akira Taniguchi, Tsukasa Kumai, Yasuhito Tanaka

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Effect of Increased Flexor Hallucis Longus Muscle Activity on Ground Reaction Force during Landing by Kosuke Oku, Daisuke Kimura, Tomotaka Ito, Akiyoshi Matsugi, Tatsuya Sugioka, Yusuke Kobayashi, Hayato Satake, Tsukasa Kumai

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A false‐pouch closure technique with an intact superior peroneal retinaculum for recurrent dislocation of the peroneal tendon by Tomohiro Matsui, Tsukasa Kumai, Yasushi Shinohara, Noriyuki Kanzaki, Koji Noguchi, Hirofumi Tanaka, Takeshi Sugimoto, Hiroki Yabiku, Ichiro Higashiyama

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Characteristics of ultrasound device: a new technology for bone curettage and excavation by Tatsuo Mae, Ken Nakata, Tsukasa Kumai, Yasuyuki Ishibashi, Tomoyuki Suzuki, Takamitsu Sakamoto, Tomoki Ohori, Takehito Hirose, Hideki Yoshikawa

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The Effect of Foot Deformity and First Metatarsophalangeal Joint Plantar Pain on Performance in DanceSport Athletes by Zijian Liu, Hiroki Yabiku, Takumi Okunuki, Shuo Chen, Takuma Hoshiba, Toshihiro Maemichi, Hideaki Nagamoto, Yanshu Li, Tsukasa Kumai

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Relationship between the morphology of osteophytes and cartilage lesions in anterior ankle impingement in athletes: a cross‐sectional study by Hiroki Yabiku, Tomohiro Matsui, Takeshi Sugimoto, Yasuyoshi Mase, Kotaro Higa, Fuminari Uehara, Takashi Toma, Chinatsu Azuma, Yasunori Tome, Kotaro Nishida, Tsukasa Kumai

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Are floating toes associated with lifestyle in children? A cross‐sectional study by Hideaki Nagamoto, Takumi Okunuki, Shimpei Takahashi, Kazuki Wakamiya, Zijian Liu, Toshihiro Maemichi, Hirofumi Katsutani, Yoshiyasu Yamada, Hiroyuki Takahashi, Hirofumi Tanaka, Toshimi Aizawa, Tsukasa Kumai

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Relationship between a history of disabled throwing shoulder/elbow and the ability to perform the deep squat test among youth baseball players by Hideaki Nagamoto, Takayuki Muraki, Shimpei Takahashi, Rei Kimura, Hiroaki Ishikawa, Kiyotsugu Shinagawa, Shunsuke Matsuoka, Yoshiyasu Yamada, Haruki Yaguchi, Daisuke Kurokawa, Hiroyuki Takahashi, Tsukasa Kumai

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Pathogenesis of Fifth Metatarsal Stress Fractures in College Soccer Players by Kazuya Sugimoto MD, PhD, Tsukasa Kumai MD, PhD, Hiroaki Kurokawa MD, Shinji Isomoto MD, PhD, Yasuhito Tanaka MD, PhD, Kohei Fujitaka, Akira Taniguchi MD, PhD

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