RT Journal Article SR Electronic T1 The power of integrated data JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 938 OP 939 DO 10.1136/bjo.2006.094805 VO 90 IS 8 A1 C R Canning YR 2006 UL http://bjo.bmj.com/content/90/8/938.abstract AB