Risk Factors for Prolonged Treatment of Whiplash-Associated Disorders

• Hiroyuki Oka ,

  * E-mail: okah-tky@umin.ac.jp

  Affiliation Department of Medical Research and Management for Musculoskeletal Pain, 22nd Century Medical & Research Center, Faculty of Medicine, University of Tokyo, Tokyo, Japan

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• Ko Matsudaira,

  Affiliation Department of Medical Research and Management for Musculoskeletal Pain, 22nd Century Medical & Research Center, Faculty of Medicine, University of Tokyo, Tokyo, Japan

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• Tomoko Fujii,

  Affiliation Department of Orthopaedic Surgery, Japan Labour, Health and Welfare Organization, Kanto Rosai Hospital, Kanagawa, Japan

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• Hiroshi Okazaki,

  Affiliation Department of Orthopaedic Surgery, Japan Labour, Health and Welfare Organization, Kanto Rosai Hospital, Kanagawa, Japan

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• Yukari Shinkai,

  Affiliation Medical Research Center, JA Kyosai Research Institute, Tokyo, Japan

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• Yutaka Tsuji,

  Affiliation Medical Research Center, JA Kyosai Research Institute, Tokyo, Japan

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• Sakae Tanaka,

  Affiliation Department of Orthopaedic Surgery, University of Tokyo, Tokyo, Japan

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• Ryuichi Kato

  Affiliation Medical Research Center, JA Kyosai Research Institute, Tokyo, Japan

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