[1] FAU Erlangen Nurnberg, Univ Klinikum Erlangen, Inst Pathol, Expt Tumorpathol, D-91054 Erlangen, Germany
[2] Friedrich Alexander Univ Erlangen Nurnberg, Univ Hosp Erlangen, Comprehens Canc Ctr Erlangen EMN CCC ER EMN, D-94054 Erlangen, Germany
[3] Heinrich Heine Univ, Univ Hosp Duesseldorf, Med Fac, Dept Gen Visceral Thorac & Pediat Surg A, D-40225 Dusseldorf, Germany