. 2020 Jun 10;11:503. doi: 10.3389/fpsyt.2020.00503
Copyright © 2020 Berg, Rozental, de Brun Mangs, Näsman, Strömberg, Viberg, Wallner, Åhman, Silfvernagel, Zetterqvist, Topooco, Capusan and Andersson
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Figure 1.
Illustration of the four conditions.