PT - JOURNAL ARTICLE ED - , TI - Answers AID - 10.1136/bjo.2007.124123a DP - 2008 Jan 01 TA - British Journal of Ophthalmology PG - 142--142 VI - 92 IP - 1 4099 - http://bjo.bmj.com/content/92/1/142.short 4100 - http://bjo.bmj.com/content/92/1/142.full SO - Br J Ophthalmol2008 Jan 01; 92