1. Selenium and GSH-Px reference values in whole blood and plasma of a reference population living in Valencia, Spain;Alegrı́a;J Trace Elem Med Biol,1996
2. Selenium intakes and plasma selenium levels in various populations;Alfthan,1996
3. Reference values for serum selenium in various areas-evaluated according to the TRACY protocol;Alfthan;J Trace Elem Med Biol,1996
4. Roles in selenium in type I iodothyronine 5′-deiodinase and in thyroid hormone and iodine metabolism;Arthur,1994
5. A contribution to the world selenium map;Beker;Biol Trace Elem Res,1992