Graham, A. D., Lundgrin, E. L., & Lin, M. C. (2018). The Berkeley Dry Eye Flow Chart: A fast, functional screening instrument for contact lens-induced dryness. PloS one, 13(1), e0190752. https://doi.org/10.1371/journal.pone.0190752
Chicago Style (17th ed.) CitationGraham, Andrew D., Erika L. Lundgrin, and Meng C. Lin. "The Berkeley Dry Eye Flow Chart: A Fast, Functional Screening Instrument for Contact Lens-induced Dryness." PloS One 13, no. 1 (2018): e0190752. https://doi.org/10.1371/journal.pone.0190752.
MLA (9th ed.) CitationGraham, Andrew D., et al. "The Berkeley Dry Eye Flow Chart: A Fast, Functional Screening Instrument for Contact Lens-induced Dryness." PloS One, vol. 13, no. 1, 2018, p. e0190752, https://doi.org/10.1371/journal.pone.0190752.
Warning: These citations may not always be 100% accurate.