Referencia:
IntHout J, Ioannidis JP, Borm GF, Goeman JJ. Small studies are more heterogeneous than large ones: a meta-meta-analysis. J Clin Epidemiol. 2015 Apr 2. pii: S0895-4356(15)00164-X. doi: 10.1016/j.jclinepi.2015.03.017. [Epub ahead of print]
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