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Johansen PØ, Krebs TS, Svartberg M, Stiles TC, Holen A.Johansen PØ, et al. Among authors: holen a.J Nerv Ment Dis. 2011 Sep;199(9):712-5. doi: 10.1097/NMD.0b013e318229d6a7.J Nerv Ment Dis. 2011.PMID: 21878788Clinical Trial.