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Xu Y, Zhang Q, Kang X, Zhu Y, Li J, Chen Y, Zhao P.Xu Y, et al. Among authors: zhao p.Acta Ophthalmol. 2013 Jun;91(4):e304-10. doi: 10.1111/aos.12055. Epub 2013 May 7.Acta Ophthalmol. 2013.PMID: 23647944Free article.
Xu Y, Zhou X, Zhang Q, Ji X, Zhang Q, Zhu J, Chen C, Zhao P.Xu Y, et al. Among authors: zhao p.Invest Ophthalmol Vis Sci. 2013 Dec 19;54(13):8229-36. doi: 10.1167/iovs.13-12297.Invest Ophthalmol Vis Sci. 2013.PMID: 24204053
Liu Y, Zhang Q, Li J, Ji X, Xu Y, Zhao P.Liu Y, et al. Among authors: zhao p.Ophthalmologica. 2016;235(2):97-105. doi: 10.1159/000443215. Epub 2016 Jan 14.Ophthalmologica. 2016.PMID: 26760978