1. Collaborative Study Guidelines
2. [CEN] European Committee for Standardization. 2007. European standard EN 15111:2007, foodstuffs - determination of trace elements - determination of iodine by ICP-MS. Brussels (Belgium): CEN.
3. [CEN] European Committee for Standardization. 2017. European standard EN 17050:2017, animal feeding stuffs: methods of sampling and analysis – determination of iodine in animal feed by ICP-MS. Brussels (Belgium): CEN.
4. [CEN] European Committee for Standardizaton TC327. 2020. Website of the technical committee for animal feeding stuffs - methods of sampling and analysis (TC327), European Committee for Standardization [Internet]. [accessed 2020 Apr 17]. https://standards.cen.eu/dyn/www/f?p=204:7:0:FSP_ORG_ID:6308&cs=151B54DCC1DA2676999693FCE3A6F61BC
5. Functions of Thyroid Hormones