The relative hazards of strontium 90 and radium 226.
D011851:Radioactivity; D011868:Radioisotopes; D011883:Radium / Q000009:adverse effects*; D013324:Strontium; D013326:Strontium Radioisotopes
D011868:Radioisotopes; D013326:Strontium Radioisotopes; D011883:Radium; D013324:Strontium
DADIUM/injurious effects; STRONTIUM/radioactive