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Appearance of the fundus of an M-1156 mouse and a control mouse. At 45 weeks of age, the retinas of M-1156 mice were mottled and their arteries (indicated by arrows) were narrower than in the retinas of control mice which were F1 mice from crossing DBA/2J mice and C57BL/6J mice; DBF1. M-1156 mouse has same genetic background with DBF1.
