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https://doi.org/10.1136/bjophthalmol-2011-301237

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    Footnotes

    • Funding This work was supported by FAPESP, grant number 98/11205, 06/53772-7 and CNPq 03763/2010-8.

    • Competing interests None.

    • Ethics approval The Ethics Committee at the Instituto de Ciências Biomédicas Universidade de São Paulo.

    • Provenance and peer review Commissioned; internally peer reviewed.