TY - JOUR T1 - A jubilee. JF - British Journal of Ophthalmology JO - Br J Ophthalmol SP - 681 LP - 682 DO - 10.1136/bjo.50.12.681 VL - 50 IS - 12 AU - S. Duke-Elder Y1 - 1966/12/01 UR - http://bjo.bmj.com/content/50/12/681.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -