Leena

“Radium, they noted, had a “similar chemical nature” to calcium. Thus radium “if absorbed, might have a preference for bone as a final point of fixation.” Radium was what one might call a boneseeker, just like calcium; and the human body is programmed to deliver calcium straight to the bones to make them stronger… Essentially, radium had masked itself as calcium and, fooled, the girls’ bodies had deposited it inside their bones. Radium was a silent stalker, hiding behind that mask, using its disguise to burrow deep into the women’s jaws and teeth.”
― Kate Moore, The Radium Girls: The Dark Story of America's Shining Women