Radioactive samarium-145 and promethium-145.
D007554:Isotopes; D011399:Promethium; D011851:Radioactivity; D011868:Radioisotopes; D012493:Samarium
D007554:Isotopes; D011868:Radioisotopes; D012493:Samarium; D011399:Promethium
ISOTOPES, RADIOACTIVE