Quantitative image analysis as an alternative to chemical analysis for follow-up of liver biopsies from a toucan with hemochromatosis. A technique with potential value for the follow-up of hemochromatosis in humans., Roels, S., Ducatelle R, and Cornelissen H , Anal Quant Cytol Histol, 1996 Jun, Volume 18, Issue 3, p.221-4, (1996)