79. 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].

79. 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].