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APA Citation
Haran, M. J., Cameron, I. D., Ivers, R. Q., Simpson, J. M., Lee, B. B., Tanzer, M., Porwal, M., Kwan, M. M. S., Severino, C., & Lord, S. R. (2010). effect on falls of providing single lens distance vision glasses to multifocal glasses wearers: VISIBLE randomised controlled trial. BMJ, 340, . http://access.bl.uk/ark:/81055/vdc_100144726031.0x000030