TY - JOUR T1 - OXFORD OPHTHALMOLOGICAL CONGRESS JF - British Journal of Ophthalmology JO - Br J Ophthalmol SP - 634 LP - 635 DO - 10.1136/bjo.23.9.634-a VL - 23 IS - 9 A2 - , Y1 - 1939/09/01 UR - http://bjo.bmj.com/content/23/9/634.2.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -