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	1.	A new way to use the Ishihara test. [electronic resource] by de Alwis, D V Kon, C H Producer: 19921229 In: Journal of neurology vol. 239 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Acute subretinal macular haemorrhage following an accidental electrical shock. [electronic resource] by Liyanage, S E Khemka, S de Alwis, D V Producer: 20070313 In: Eye (London, England) vol. 20 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Automated tritan discrimination sensitivity: a new clinical technique for the effective screening of severe diabetic retinopathy. [electronic resource] by Tregear, S J Ripley, L G Knowles, P J Gilday, R T de Alwis, D V Reffin, J P Producer: 19941018 In: International journal of psychophysiology : official journal of the International Organization of Psychophysiology vol. 16 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)

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