title: The exponential decrease of  137 Cs in man from mid-1965 through mid-1968 and its significance.
mesh_terms: D000293:Adolescent; D000328:Adult; D001822:Body Burden; D002587:Cesium Isotopes / Q000032:analysis*; D002641:Chicago; D005260:Female; D005507:Food Contamination, Radioactive; D006207:Half-Life; D006801:Humans; D008131:London; D008297:Male; D009516:New Mexico; D011188:Potassium / Q000032:analysis; D011834:Radiation Monitoring; D011847:Radioactive Fallout; D011851:Radioactivity; D012494:Sampling Studies; D012621:Seasons; D012987:Soil; D013557:Switzerland; D014915:Whole-Body Counting
chemical_list: D002587:Cesium Isotopes; D011847:Radioactive Fallout; D012987:Soil; D011188:Potassium