TY - JOUR T1 - ABSTRACTS JF - British Journal of Ophthalmology JO - Br J Ophthalmol SP - 215 LP - 232 DO - 10.1136/bjo.12.4.215 VL - 12 IS - 4 A2 - , Y1 - 1928/04/01 UR - http://bjo.bmj.com/content/12/4/215.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -