. 2016 Oct 19;7:471. doi: 10.3389/fphys.2016.00471
Copyright © 2016 Sanada, Montero-Marin, Alda Díez, Salas-Valero, Pérez-Yus, Morillo, Demarzo, García-Toro and García-Campayo.
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Figure 1.
Algorithm of study selection.