. 2016 Oct 4;7:1491. doi: 10.3389/fpsyg.2016.01491
Copyright © 2016 Bjornestad, Joa, Larsen, Langeveld, Davidson, ten Velden Hegelstad, Anda, Veseth, Melle, Johannessen and Bronnick.
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FIGURE 1.
Flowchart – Participant participation.