The number of umbrella reviews, the systematic reviews of all systematic reviews and meta-analyses in a specified subject, have increased exponentially in recent years. In February 2024, a PubMed search with the term "umbrella review" yielded 840 publications in 2023, compared with 77 in 2013, and 16 in 2003. As the number of scientific publications grows, also does the need to synthesize the current state of knowledge to guide research efforts, clinical practice, and health policies.1,2.
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