Medical University, Graz, Austria
AZ St.-Blasius Hospital, Dendermonde, Belgium
University Hospital, Zurich, Switzerland
Nuvisan GmbH, Neu-Ulm, Bayern, Germany
Boston Medical Center, Boston, Massachusetts, United States
Columbus Center for Women's Health Research, Columbus, Ohio, United States
Dr. Walter Paulik, Zeltweg, Austria
Scope International, Hamburg, Germany
Dinox B.V., Groningen, Netherlands