[1] Tilburg Univ, NL-5000 LE Tilburg, Netherlands
[2] Comprehens Canc Ctr South, Eindhoven Canc Registry, Eindhoven, Netherlands
[3] Catharina Hosp, Eindhoven, Netherlands
[4] Inst Verbeeten, Tilburg, Netherlands
[5] Viecuri Med Ctr, Venlo, Netherlands