PT - JOURNAL ARTICLE ED - , TI - Abstracts AID - 10.1136/bjo.26.11.514 DP - 1942 Nov 01 TA - British Journal of Ophthalmology PG - 514--522 VI - 26 IP - 11 4099 - http://bjo.bmj.com/content/26/11/514.short 4100 - http://bjo.bmj.com/content/26/11/514.full SO - Br J Ophthalmol1942 Nov 01; 26