[1] Tianjin Med Univ Canc Inst & Hosp, Natl Clin Res Ctr Canc, Key Lab Canc Prevent & Therapy, Dept Radiol, Tianjin 300060, Peoples R China
[2] Univ Groningen, Univ Med Ctr Groningen, Dept Radiol, Groningen, Netherlands
[3] Univ Groningen, Univ Med Ctr Groningen, Dept Epidemiol, Groningen, Netherlands
[4] Med Spectrum Twente, Dept Pulmonol, Enschede, Netherlands
[5] Univ Groningen, Fac Med Sci, Dept Radiotherapy, Groningen, Netherlands
[6] Univ Groningen, Fac Med Sci, Dept Pulm Dis, Groningen, Netherlands
[7] Univ Groningen, Fac Med Sci, Groningen, Netherlands
[8] I DNA BV, Groningen, Netherlands