[1] Osaka Int Canc Ctr, Canc Control Ctr, Osaka, Japan
[2] London Sch Hyg & Trop Med, Canc Survival Grp, London, England
[3] UCL Great Ormond St Inst Child Hlth, Dev Biol & Canc Programme, London, England
[4] Publ Hlth England, Natl Canc Registrat & Anal Serv, Oxford, England
[5] Natl Canc Ctr, Ctr Canc Control & Informat Serv, Ctr Canc Registries, Tokyo, Japan