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APA Citation
Laviers, H., Burhan, I., Omar, F., Jecha, H., & Gilbert, C. (2011). evaluation of distribution of presbyopic correction through primary healthcare centres in Zanzibar, East Africa. British journal of ophthalmology, 95(6), 783–787. http://access.bl.uk/ark:/81055/vdc_100135137828.0x000045