Radioactivity content of books.
D001877:Books; D002588:Cesium Radioisotopes / Q000032:analysis*; D005060:Europe; D005123:Eye; D007194:India; D007564:Japan; D011197:Potassium Radioisotopes / Q000032:analysis*; D011829:Radiation Dosage; D011847:Radioactive Fallout; D011851:Radioactivity; D011883:Radium / Q000032:analysis*; D013910:Thorium / Q000032:analysis*; D014481:United States
D002588:Cesium Radioisotopes; D011197:Potassium Radioisotopes; D011847:Radioactive Fallout; D013910:Thorium; D011883:Radium