. 2020 Sep 30;11:563375. doi: 10.3389/fneur.2020.563375
Copyright © 2020 Maresca, Maggio, De Luca, Manuli, Tonin, Pignolo and Calabrò.
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Figure 1.
PRISMA 2009 flow diagram (31). For more information, visit www.prisma-statement.org.