Toews I, Anglemyer A, Nyirenda JL, Alsaid D, Balduzzi S, Grummich K, Schwingshackl L, Bero L (2024)

Healthcare outcomes assessed with observational study designs compared with those assessed in randomized trials: a meta-epidemiological study. Cochrane Database of Systematic Reviews (1), MR000034. www.cochranelibrary.com/cdsr/doi/10.1002/14651858.MR000034.pub3/full
Cochrane meta-epidemiology study of 39 systematic reviews and 8 overviews of reviews comparing the results for observational studies and randomised trials.

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