Effects of radon inhalation on the changes in A) serum creatinine level and B) antioxidant-related substances caused by 15 mg/kg CDDP in BALB/c mice with CDDP-induced renal injury. ##P < 0.01 indicates the treatment groups vs. the control. The sham group was treated with 15 mg/kg CDDP only with air inhalation. |P < 0.05 and |||P < 0.001 indicate the radon inhalation groups vs. the sham.