title: [Background radiation and childhood cancer mortality (author's transl)].
mesh_terms: D001417:Background Radiation; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007564:Japan; D009369:Neoplasms / Q000401:mortality*; D009381:Neoplasms, Radiation-Induced / Q000401:mortality; D011829:Radiation Dosage; D011839:Radiation, Ionizing