The relationship of the strontium-90 to caesium-137 activity ratio in milk to the rate of fallout from nuclear tests.
D000818:Animals; D002587:Cesium Isotopes / Q000032:analysis*; D007194:India; D008892:Milk / Q000032:analysis*; D011847:Radioactive Fallout; D011868:Radioisotopes / Q000032:analysis*; D013326:Strontium Radioisotopes / Q000032:analysis*
D002587:Cesium Isotopes; D011847:Radioactive Fallout; D011868:Radioisotopes; D013326:Strontium Radioisotopes