PT - JOURNAL ARTICLE ED - , TI - ABSTRACTS AID - 10.1136/bjo.6.9.426 DP - 1922 Sep 01 TA - British Journal of Ophthalmology PG - 426--430 VI - 6 IP - 9 4099 - http://bjo.bmj.com/content/6/9/426.short 4100 - http://bjo.bmj.com/content/6/9/426.full SO - Br J Ophthalmol1922 Sep 01; 6