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Lam LC, Lui VW, Luk DN, Chau R, So C, Poon V, Tam P, Ching R, Lo H, Chiu J, Fung A, Ko FS.Lam LC, et al. Among authors: lui vw.Int J Geriatr Psychiatry. 2010 Feb;25(2):133-41. doi: 10.1002/gps.2309.Int J Geriatr Psychiatry. 2010.PMID: 19582757Clinical Trial.