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MLA Citation
Zhijian Li et al.. “Prevalence of and Risk Factors for Pterygia in a Rural Northern Chinese Population.” Ophthalmic epidemiology, vol. 21, 2014, pp. 378–383. http://access.bl.uk/ark:/81055/vdc_100024972774.0x00005d
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Zhijian Li et al.. “Prevalence of and Risk Factors for Pterygia in a Rural Northern Chinese Population.” Ophthalmic epidemiology, vol. 21, 2014, pp. 378–383. http://access.bl.uk/ark:/81055/vdc_100024972774.0x00005d