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Ayu RS, Khalina A, Harmaen AS, Zaman K, Isma T, Liu Q, Ilyas RA, Lee CH.Ayu RS, et al. Among authors: ilyas ra.Polymers (Basel). 2020 Jul 15;12(7):1571. doi: 10.3390/polym12071571.Polymers (Basel). 2020.PMID: 32679865Free PMC article.