Table 8: Risk of bias assessment in randomized controlled trials.

Random sequence generationAllocation concealmentBlinding of participants and personnelBlinding of outcome assessmentIncomplete outcome dataSelective reportingOther bias Jadad et al. score [72]

Fujita et al. 2011??<3
Hüppe et al. 2009??<3
Kanji et al. 20154
Kihara et al. 2004???<3
Kunbootsri et al. 2013??<3
Kuwahata et al. 2011??<3
Masuda et al. 2004?<3
Masuda et al. 2005 -pain?<3
Masuda et al. 2005 -depression?<3
Miyata et al. 2008??<3
Pach et al. 2010??5
Shinsato et al. 2010??<3
Tei et al. 2016??3

✓: low risk of bias; : high risk of bias; ?: unclear risk of bias.