title: 3,3'-Dityrosine in the proteins of senile nuclear cataracts.
mesh_terms: D000368:Aged; D002386:Cataract / Q000378:metabolism*; D003459:Crystallins; D004151:Dipeptides / Q000032:analysis*; D006801:Humans
chemical_list: D003459:Crystallins; D004151:Dipeptides