. 2017 Mar 31;11:135. doi: 10.3389/fnhum.2017.00135
Copyright © 2017 Strehl, Aggensteiner, Wachtlin, Brandeis, Albrecht, Arana, Bach, Banaschewski, Bogen, Flaig-Röhr, Freitag, Fuchsenberger, Gest, Gevensleben, Herde, Hohmann, Legenbauer, Marx, Millenet, Pniewski, Rothenberger, Ruckes, Wörz and Holtmann.
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FIGURE 1.
Study flow (modified from Holtmann et al., 2014).