@article{oai:repo.qst.go.jp:00045372,
 author = {Yoshinaga, Shinji and Ishikawa, Tetsuo and Tokonami, Shinji and et.al and 吉永 信治 and 石川 徹夫 and 床次 眞司},
 journal = {The Natural Radiation Environment : 8th International Symposium (NRE VIII), Buzios, Rio de Janeiro, Brazil, 7-12 October 2007 (AIP Conference Proceedings ; vol. 1034)},
 month = {Nov},
 pages = {429--432},
 title = {Radon in drinking water and cancer mortality: an ecological study in Japan},
 volume = {1034},
 year = {2008}
}