RT Journal Article SR Electronic T1 Therapeutic Systems JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 154 OP 154 DO 10.1136/bjo.69.2.154-b VO 69 IS 2 A1 S. J. Crews YR 1985 UL http://bjo.bmj.com/content/69/2/154.3.abstract AB