RT Journal Article SR Electronic T1 Dictionary of Medical Ethics JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 804 OP 804 DO 10.1136/bjo.65.11.804 VO 65 IS 11 A1 John Winstanley YR 1981 UL http://bjo.bmj.com/content/65/11/804.1.abstract AB