Ellis, J. D.; Zvandasara, T.; Leese, G.; McAlpine, R.; MacEwen, C. J.; Baines, P. S.; Crombie, I.; Morris, A. D. . (2011). Clues to duration of undiagnosed disease from retinopathy and maculopathy at diagnosis in type 2 diabetes: a cross-sectional study. British Journal of Ophthalmology, 95(9), 1229–1233.
doi:10.1136/bjo.2010.196204
