@inbook{inbookb5ab3059, title = {Early vision loss in diabetic patients assessed by the Cambridge Colour Test}, author = {Ventura, Dora Selma Fix and Costa, Marcelo Fernandes da and Gualtieri, Mirella and Nishi, Mauro and Bernik, Marcia Martins Silveira and Bonci, Daniela Maria Oliveira and Souza, J. M.}, year = {2003}, publisher = {Oxford University Press}, journal = {Normal and defective colour vision} }