1) Justification of the article’s importance for the readership
2) Statement of concrete aims or formulation of questions
3) Description of the literature search
4) Referencing
5) Scientific reasoning
6) Appropriate presentation of data
Reference: Baethge, C., Goldbeck-Wood, S. & Mertens, S. SANRA—a scale for the quality assessment of narrative review articles. Res Integr Peer Rev 4, 5 (2019). https://doi.org/10.1186/s41073-019-0064-8