[1] Charite Comprehens Canc Ctr, Berlin, Germany
[2] Charite, Inst Pathol, Berlin, Germany
[3] Univ Hosp Carl Gustav Carus Dresden, Inst Pathol, Dresden, Germany
[4] Charite Univ Med Berlin, Dept Pathol, Berlin, Germany
[5] Astra Zeneca, Wedel, Germany
[6] Charite, Dept Radiooncol & Radiotherapy, Berlin, Germany
[7] German Canc Res Ctr Heidelberg DKFZ, German Canc Consortium DKTK, Berlin, Germany
[8] Humboldt Univ, Inst Theoret Biol, Berlin, Germany
[9] Charite Comprehens Canc Ctr, Berlin, Germany
[10] EORTC, Berlin, Germany
[11] Charite Univ Med Berlin, Dept Gastroenterol, Berlin, Germany
[12] Charite Univ Med Berlin, German Canc Consortium DKTK, Berlin, Germany
[13] Berlin Inst Hlth, Core Unit Bioinformat, Berlin, Germany