13 - Patel S, Henderson R, Bradley L, Galloway B, Hunter L (1991) Effect of visual display unit use on blink rate and tear stability. Optometry & Vision Science 68: 888–892 [PubMed].

13 - Patel S, Henderson R, Bradley L, Galloway B, Hunter L (1991) Effect of visual display unit use on blink rate and tear stability. Optometry & Vision Science 68: 888–892 [PubMed].