title: An epidemiologic approach to low-level radium 226 exposure.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001859:Bone Neoplasms / Q000401:mortality; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007087:Illinois; D007223:Infant; D007231:Infant, Newborn; D007484:Iowa; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000401:mortality; D011883:Radium; D012189:Retrospective Studies; D014878:Water Pollution, Radioactive
chemical_list: D011883:Radium