RT Journal Article SR Electronic T1 Anti-trĂ choma League JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 242 OP 242 DO 10.1136/bjo.7.5.242 VO 7 IS 5 YR 1923 UL http://bjo.bmj.com/content/7/5/242.1.abstract AB