Kolhe DK, Shrivastava S, Dharmadhikari VN. Measurement and analysis of 222RN in the commonly used building construction materials. ijhs [Internet]. 2022 Jul. 25 [cited 2024 Jul. 16];6(S6):7850-8. Available from: https://sciencescholar.us/journal/index.php/ijhs/article/view/11101