RT Journal Article SR Electronic T1 Miniature binocular indirect ophthalmoscope. JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 356 OP 359 DO 10.1136/bjo.53.5.356 VO 53 IS 5 A1 G W Crock A1 J E Galbraith A1 J M Parel YR 1969 UL http://bjo.bmj.com/content/53/5/356.abstract AB