RT Journal Article SR Electronic T1 Sinus trabeculectomy. Preliminary results of 100 operations. JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 833 OP 839 DO 10.1136/bjo.56.11.833 VO 56 IS 11 A1 A P Nesterov A1 N V Federova A1 Y E Batmanov YR 1972 UL http://bjo.bmj.com/content/56/11/833.abstract AB