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APA Citation
Wang, C., Wang, X., Jin, L., Tang, B., Zhu, W., Zhang, G., Chen, T., McAneney, H., Kassalow, J., & Congdon, N. (2019). influence of presbyopia on smartphone usage among Chinese adults: A population study. Clinical & experimental ophthalmology, 47, 909–917. http://access.bl.uk/ark:/81055/vdc_100093258004.0x000032