TY - JOUR T1 - ABSTRACTS JF - British Journal of Ophthalmology JO - Br J Ophthalmol SP - 276 LP - 278 DO - 10.1136/bjo.27.6.276 VL - 27 IS - 6 AU - Arnold Sorsby Y1 - 1943/06/01 UR - http://bjo.bmj.com/content/27/6/276.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -