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Hestad KA, Engedal K, Whist JE, Farup PG.Hestad KA, et al.Front Psychol. 2017 Oct 4;8:1561. doi: 10.3389/fpsyg.2017.01561. eCollection 2017.Front Psychol. 2017.PMID: 29046648Free PMC article.