RT Journal Article SR Electronic T1 Operation for Entropion of the Upper Eyelid in Trachoma JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 555 OP 558 DO 10.1136/bjo.34.9.555 VO 34 IS 9 A1 Torgersruud, T. YR 1950 UL http://bjo.bmj.com/content/34/9/555.abstract AB