RT Journal Article SR Electronic T1 XIIth ISCERG Symposium, Clermont Ferrand, 20–22 May 1974 JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 366 OP 366 DO 10.1136/bjo.61.5.366-a VO 61 IS 5 A1 N. Galloway YR 1977 UL http://bjo.bmj.com/content/61/5/366.2.abstract AB