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Sim R, Cheung G, Ting D, et al. Retinal microvascular signs in COVID-19. Br J Ophthalmol. 2021;doi: 10.1136/bjophthalmol-2020-318236.
Sim, R., Cheung, G., Ting, D., Wong, E., Wong, T. Y., Yeo, I., & Wong, C. W. (2021). Retinal microvascular signs in COVID-19. The British journal of ophthalmology, . https://doi.org/10.1136/bjophthalmol-2020-318236
Sim, Ralene, et al. "Retinal microvascular signs in COVID-19." The British journal of ophthalmology vol. (2021). doi: https://doi.org/10.1136/bjophthalmol-2020-318236
Sim R, Cheung G, Ting D, Wong E, Wong TY, Yeo I, Wong CW. Retinal microvascular signs in COVID-19. Br J Ophthalmol. 2021 Mar 19; doi: 10.1136/bjophthalmol-2020-318236. Epub 2021 Mar 19. PMID: 33741583; PMCID: PMC7985973.
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