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Knibbs N, Tsoi DT.Knibbs N, et al. Among authors: tsoi dt.Gen Hosp Psychiatry. 2011 Nov-Dec;33(6):641.e1-2. doi: 10.1016/j.genhosppsych.2011.05.008. Epub 2011 Jun 15.Gen Hosp Psychiatry. 2011.PMID: 21749843