参考：

Matsudaira K, Oka H, Kikuchi N, Haga Y, Sawada T, TanakaS：Psychometric Properties of the Japanese Version of the STarT Back Tool in Patients with Low Back Pain. PLoS One. 2016 Mar 22;11(3):e0152019, PMID：27002823

Matsudaira K, Oka H, Kikuchi N, Haga Y, Sawada T, Tanaka S. The Japanese version of the STarT Back Tool predicts 6-month clinical outcomes of low back pain. J Orthop Sci. 2017 Mar;22(2):224-229. doi: 10.1016/j.jos.2016.11.023. Epub 2016 Dec 23. PubMed PMID: 28025022.