RT Journal Article SR Electronic T1 THE BOWMAN LIBRARY JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 511 OP 516 DO 10.1136/bjo.6.11.511 VO 6 IS 11 A1 R. R. James YR 1922 UL http://bjo.bmj.com/content/6/11/511.abstract AB