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" In vivo study of compounds 3-(acetyl Salicyloyl)-5,6 –Oisopropylidene-L-ascorbic acid ,2,3- (acetyl Salicyloyl)-5,6 –O-isopropylidene-L-ascorbic acid and 2,3,5,6Tetra(acetyl Salicyloyl)-L-ascorbic acid." <em>Ibn AL- Haitham Journal For Pure and Applied Science</em> [Online], 22.2 (2009): n. pag. Web.  1 Dec. 2019