Table 4.

Risk of individual biases of the eight studies selected for systematic review for each domain of risk assessment of bias in randomized clinical trials by the Cochrane collaboration tool.

	Random Sequence Generation	Allocation Concealment	Blinding of Participants and Professionals	Blinding of Outcome Assessors	Incomplete Outcomes (Losses)	Selective Reporting of Outcome	Other Biases
Antoniou, 2016	LOW	UNCERTAIN	UNCERTAIN	UNCERTAIN	LOW	UNCERTAIN	UNCERTAIN
Arruda, 2009	HIGH	UNCERTAIN	HIGH	HIGH	HIGH	UNCERTAIN	UNCERTAIN
Cheema, 2018	UNCERTAIN	UNCERTAIN	UNCERTAIN	LOW	UNCERTAIN	UNCERTAIN	UNCERTAIN
Elman, 2002	UNCERTAIN	UNCERTAIN	LOW	UNCERTAIN	UNCERTAIN	UNCERTAIN	UNCERTAIN
Gold, 2011	UNCERTAIN	UNCERTAIN	UNCERTAIN	UNCERTAIN	UNCERTAIN	UNCERTAIN	UNCERTAIN
Kwon, 2019	LOW	LOW	UNCERTAIN	LOW	LOW	UNCERTAIN	UNCERTAIN
Papagerorgiou, 2000	LOW	UNCERTAIN	LOW	LOW	LOW	UNCERTAIN	UNCERTAIN
Tzung, 2004	UNCERTAIN	UNCERTAIN	UNCERTAIN	UNCERTAIN	UNCERTAIN	UNCERTAIN	UNCERTAIN

Higgins, J. P. T., Savovic, J., Page, M. J., Sterne, J. A. C., 2016. Revised Cochrane risk of bias tool for randomized trials (RoB 2.0). Creative Commons Attribution-NonCommercialNoDerivatives 4.0 International License.