Natural thorium in human bone.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging; D001417:Background Radiation; D001822:Body Burden; D001842:Bone and Bones / Q000032:analysis*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008433:Mathematics; D008875:Middle Aged; D008954:Models, Biological; D011883:Radium / Q000032:analysis; D012272:Ribs; D013910:Thorium / Q000032:analysis*
D013910:Thorium; D011883:Radium