title: Fallout in the United States and other areas January-December 1972.
mesh_terms: D011847:Radioactive Fallout / Q000032:analysis*; D013020:South America; D013326:Strontium Radioisotopes / Q000032:analysis; D014481:United States
chemical_list: D011847:Radioactive Fallout; D013326:Strontium Radioisotopes