1. Philips Research North America - Briarcliff Manor, Clinical Informatics; Interventional, and Translational Solutions; 345 Scarborough Road Briarcliff Manor NY 10510 USA
2. Philips Technologie GmbH; Innovative Technologies; Rontgenstrasse 24-26 D-22335 Hamburg Germany
3. Washington University in St. Louis; Department of Biomedical Engineering; St. Louis, Whitaker Hall, Campus Box 1097 St. Louis, Missouri 63130 MO USA