title: Correlation between natural radiation exposure and cancer mortality (4).
mesh_terms: D000367:Age Factors; D001417:Background Radiation / Q000009:adverse effects*; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D009381:Neoplasms, Radiation-Induced / Q000401:mortality*; D011839:Radiation, Ionizing / Q000009:adverse effects*; D013223:Statistics as Topic