TY - JOUR T1 - EDITORIAL JF - British Journal of Ophthalmology JO - Br J Ophthalmol SP - 289 LP - 290 DO - 10.1136/bjo.57.5.289 VL - 57 IS - 5 A2 - , Y1 - 1973/05/01 UR - http://bjo.bmj.com/content/57/5/289.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -