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Poon AK, Yeung E, Boghossian N, Albert PS, Zhang C.Poon AK, et al. Among authors: albert ps.Scientifica (Cairo). 2013;2013:786409. doi: 10.1155/2013/786409. Epub 2013 Dec 31.Scientifica (Cairo). 2013.PMID: 24490111Free PMC article.