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Andersen JR, Natvig GK, Haraldstad K, Skrede T, Aadland E, Resaland GK.Andersen JR, et al. Among authors: natvig gk.Health Qual Life Outcomes. 2016 Apr 9;14:58. doi: 10.1186/s12955-016-0460-4.Health Qual Life Outcomes. 2016.PMID: 27062022Free PMC article.