RT Journal Article SR Electronic T1 DEMANDS OF THE SERVICES JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 89 OP 90 DO 10.1136/bjo.26.2.89 VO 26 IS 2 A1 Bickerton, J. Myles YR 1942 UL http://bjo.bmj.com/content/26/2/89.abstract AB