1. University of Twente, Enschede Philips Medical Systems, Best,Best,The Netherlands
2. University of Twente,Enschede,The Netherlands
3. Philips Medical Systems,Best,The Netherlands
4. Medisch Spectrum Twente Hospital,Enschede,The Netherlands
5. University of Twente, Enschede Thales Netherland, Hengelo,Enschede,The Netherlands