Choi SC, Min YG, Lee IS, Yoon GH, Kang BR, Jung YS, Cho JP, Kim GW
Ohtori S, Yamashita , Murata Y, Eguchi Y, Aoki Y, Ataka H, Hirayama J, Ozawa T, Morinaga T, Arai H, Mimura M, Kamoda H, Orita S, Miyagi M, Miyashita , Okamoto Y, Ishikawa T, Sameda H, Kinoshita , Hanaoka E, Suzuki M, Suzuki M, Aihara T, Ito T, Inoue G, Yamagata M, Toyone T, Kubota G, Sakuma Y, Oikawa Y, Inage K, Sainoh T, Sato J, Yamauchi K, Takahashi , Chiba Low Back Pain Research Group