2004, Biochemical comparison between radon effects and thermal effects on humans in radon hot spring therapy

Yamaoka K, Mitsunobu F, Hanamoto K, Shibuya K, Mori S, Tanizaki Y, Sugita K:

J.Radiat.Res. 2004; 45:83-88.  doi: 10.1269/jrr.45.83.

https://academic.oup.com/jrr/article/45/1/83/1037443