title: Small quantities of 131I in thyroids of sheep from Wales.
mesh_terms: D000818:Animals; D007457:Iodine Radioisotopes / Q000032:analysis*; D011834:Radiation Monitoring; D011848:Radioactive Pollutants / Q000032:analysis*; D012756:Sheep; D013961:Thyroid Gland / Q000032:analysis*; D014852:Wales
chemical_list: D007457:Iodine Radioisotopes; D011848:Radioactive Pollutants