PT - JOURNAL ARTICLE ED - , TI - ABSTRACTS AID - 10.1136/bjo.5.7.324 DP - 1921 Jul 01 TA - British Journal of Ophthalmology PG - 324--334 VI - 5 IP - 7 4099 - http://bjo.bmj.com/content/5/7/324.short 4100 - http://bjo.bmj.com/content/5/7/324.full SO - Br J Ophthalmol1921 Jul 01; 5