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.
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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