TY - JOUR T1 - ABSTRACTS JF - British Journal of Ophthalmology JO - Br J Ophthalmol SP - 240 LP - 246 DO - 10.1136/bjo.30.4.240 VL - 30 IS - 4 AU - H. B. Stallard AU - F. A. W-N. AU - B. W. Rycroft AU - A. F. MacCallan Y1 - 1946/04/01 UR - http://bjo.bmj.com/content/30/4/240.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -