1. Aachen University,Laboratory for Machine Tools and Production Engineering (WZL) of RWTH,Department of automation and control,Aachen,Germany
2. Aachen University,Laboratory for Machine Tools and Production Engineering (WZL) of RWTH,Aachen,Germany
3. Uniklinik RWTH,Medizinische Klinik IV, Haematologie, Onkologie und Stammzelltransplantation,Aachen,Germany