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APA Citation
Boyd, S., Owens, D., Gin, T., Bunce, K., Sherafat, H., Perry, D., & Hykin, P. G. (2001). plasma homocysteine, methylene tetrahydrofolate reductase C677T and factor II G20210A polymorphisms, factor VIII, and VWF in central retinal vein occlusion. British journal of ophthalmology, 85(11), 1313–1315. http://access.bl.uk/ark:/81055/vdc_100135555539.0x000051