PT - JOURNAL ARTICLE AU - A. F. MacCallan TI - TRACHOMA AID - 10.1136/bjo.10.7.415 DP - 1926 Jul 01 TA - British Journal of Ophthalmology PG - 415--416 VI - 10 IP - 7 4099 - http://bjo.bmj.com/content/10/7/415.short 4100 - http://bjo.bmj.com/content/10/7/415.full SO - Br J Ophthalmol1926 Jul 01; 10