RT Journal Article SR Electronic T1 Essential progressive iris atrophy. JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 649 OP 651 DO 10.1136/bjo.53.10.649 VO 53 IS 10 A1 J Boberg-Ans YR 1969 UL http://bjo.bmj.com/content/53/10/649.abstract AB