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G21G—CONVERSION OF CHEMICAL ELEMENTS; RADIOACTIVE SOURCES
G21G4/00—Radioactive sources
G—PHYSICS
G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
G21H—OBTAINING ENERGY FROM RADIOACTIVE SOURCES; APPLICATIONS OF RADIATION FROM RADIOACTIVE SOURCES, NOT OTHERWISE PROVIDED FOR; UTILISING COSMIC RADIATION
G21H5/00—Applications of radiation from radioactive sources or arrangements therefor, not otherwise provided for
G21H5/02—Applications of radiation from radioactive sources or arrangements therefor, not otherwise provided for as tracers
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Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals
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Pharmaceuticals Containing Other Organic And Inorganic Compounds
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