It's quite good news for the professionals in evidence synthesis as the scoping review can be reported as per the JBI updated PRISMA-ScR guideline. Nontheless, we know that it is very difficult to develop a single tool to assess the qualities of the studies included in a scoping review because of the multiple categories of studies included. However, when the scoping is reviewed systematically with limited categories of studies, such as randomised trials or umbrella reviews, is there any common tool that can be used for the assessment of the quality of the studies?