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APA Citation
Galvis, V., Tello, A., Carreño, N. I., Berrospi, R. D., Niño, C. A., & Serna, V. H. (2020). defocus curve and vergence related to viewing distance. Journal of cataract and refractive surgery, 46(5), 803. http://access.bl.uk/ark:/81055/vdc_100169170735.0x000020