RT Journal Article SR Electronic T1 Ex-PRESS implant JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 396 OP 397 DO 10.1136/bjo.2004.061689 VO 89 IS 4 A1 A Mermoud YR 2005 UL http://bjo.bmj.com/content/89/4/396.abstract AB