title: Are lens opacities related to plasma selenium and glutathione peroxidase in man?
mesh_terms: D000368:Aged; D002386:Cataract / Q000097:blood*; D005979:Glutathione Peroxidase / Q000097:blood*; D006801:Humans; D008297:Male; D012643:Selenium / Q000097:blood*
chemical_list: D005979:Glutathione Peroxidase; D012643:Selenium