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Hi everyone,

I'm wondering if anyone has experience with working on a topic that has been reviewed many different times already. As we are doing our test searches, we're finding many related so-called systematic reviews and are wondering if doing yet another will just be duplicative. We would likely take a slightly different angle from anything we're finding, but I worry that this is already an over-reviewed topic. That said, the search in almost every review we've seen has been poor to very poor.

I've suggested an umbrella review, but am not sure that's the route the team wants to take. I'm also thinking a systematic map might be a good approach. Does anyone have experience with umbrella reviews to share? Or a similar issue with finding a niche in a heavily reviewed field?

Thanks!

Sarah