TY - JOUR T1 - Precision versus confusion. JF - British Journal of Ophthalmology JO - Br J Ophthalmol SP - 852 LP - 853 DO - 10.1136/bjo.73.10.852-a VL - 73 IS - 10 AU - P E Romano Y1 - 1989/10/01 UR - http://bjo.bmj.com/content/73/10/852.2.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -