Fig. 3. RoBANS (risk-of-bias assessment tool for non-randomized study) summary. Green: low risk of bias, Yellow: unclear risk of bias, Red: high risk of bias.

J Korean Assoc Oral Maxillofac Surg 2022;48:259~266
https://doi.org/10.5125/jkaoms.2022.48.5.259

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