Gudmundsdottir , E.Y., Gunnarsdottir , I., Thorlacius , A., Reykdal , O., Gunnlaugsdottir , H., Thorsdottir , I. and Steingrimsdottir , L. 2012. Blood selenium levels and contribution of food groups to selenium intake in adolescent girls in Iceland. Food & Nutrition Research. (Aug. 2012). DOI:https://doi.org/10.3402/fnr.v56i0.18476.