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Alsirafy SA, Galal KM, Abou-Elela EN, Ibrahim NY, Farag DE, Hammad AM.Alsirafy SA, et al.Ann Palliat Med. 2013 Oct;2(4):173-7. doi: 10.3978/j.issn.2224-5820.2013.10.02.Ann Palliat Med. 2013.PMID: 25841389Free article.