RT Journal Article SR Electronic T1 Malignant transformation of iris melanocytoma to iris ring melanoma JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 1571 OP 1572 DO 10.1136/bjo.2006.105858 VO 91 IS 11 A1 Mandeep S Sagoo A1 Prithvi Mruthyunjaya A1 Ian Cree A1 Philip J Luthert A1 John L Hungerford YR 2007 UL http://bjo.bmj.com/content/91/11/1571.abstract AB