The review of reviews family is unique in that it focuses on one study type for the topic of the review. For example prioritising systematic reviews or 'evidence syntheses rather than primary studies'. (Sutton, 2019). It is a suitable methodology to adpot when several existing reviews exist on a topic that may differ in quality and purview. The comparison and evaluation of multiple reviews under one arm can assist with clinical decision-making when multiple reviews are available on a given area of research.
Sutton, A., Clowes, M., Preston, L., & Booth, A. (2019). Meeting the review family: exploring review types and associated information retrieval requirements. Health Information & Libraries Journal, 36(3), 202-222
Hunt, H., Pollock, A., Campbell, P., Estcourt, L., & Brunton, G. (2018). An introduction to overviews of reviews: planning a relevant research question and objective for an overview. Systematic reviews, 7(1), 1-9.