[1] Vrije Univ Amsterdam, Med Ctr, Dept Med Oncol, Amsterdam, Netherlands
[2] Vrije Univ Amsterdam, Med Ctr, Dept Pathol, Amsterdam, Netherlands
[3] Vrije Univ Amsterdam, Med Ctr, Dept Epidemiol & Biostat, Amsterdam, Netherlands
[4] Vrije Univ Amsterdam, Med Ctr, Dept Math, Amsterdam, Netherlands
[5] Spaarne Hosp, Dept Pathol, Hoofddorp, Netherlands
[6] Erasmus MC Canc Inst, Dept Surg, Rotterdam, Netherlands
[7] Vrije Univ Amsterdam, Med Ctr, Amsterdam, Netherlands