. 2019 May 8;10:553. doi: 10.3389/fphys.2019.00553
Copyright © 2019 García-Prieto, Gil-Ortega, Vega-Martín, Ramiro-Cortijo, Martín-Ramos, Bordiú, Sanchez-Pernaute, Torres, Aránguez, Fernández-Alfonso, Rubio and Somoza.
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FIGURE 1.
Scheme explaining the study design and the patient selection process.