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We read with great interest the paper by Lim et al1 entitled ‘Plasma, aqueous and vitreous homocysteine levels in proliferative diabetic retinopathy’. We want to add a short notation to help the readers interpret the results of the study objectively. We do congratulate the authors for their valuable article. It is not so easy to collect simultaneously three …
Competing interests None.
Provenance and peer review Not commissioned; externally peer reviewed.