@misc{oai:repo.qst.go.jp:00060539, author = {Yoshinaga, Shinji and Tokonami, Shinji and Akiba, Suminori and et.al and 吉永 信治 and 床次 眞司 and 秋葉 澄伯}, month = {Sep}, note = {6th International Conference on High Levels of Natural Radiation and Radon Areas}, title = {Case-control study of residential radon and childhood leukemia in Japan: results from preliminary analyses}, year = {2004} }