. 2020 Mar 19;11:185. doi: 10.3389/fphys.2020.00185
Copyright © 2020 Oberste, Medele, Javelle, Lioba Wunram, Walter, Bloch, Bender, Fricke, Joisten, Walzik, Großheinrich and Zimmer.
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Figure 1.
Flow chart of studies retrieved and screened according to the PRISMA guidelines.