1. Boehringer Ingelheim Pharmaceuticals, Inc.; Ridgefield CT USA
2. Buffalo Clinical Research Center; Buffalo NY USA
3. University of North Carolina; Chapel Hill NC USA
4. University Hospital Basel; Basel Switzerland
5. Boehringer Ingelheim (Schweiz) GmbH; Basel Switzerland
6. Boehringer Ingelheim Pharmaceuticals GmbH & Co. KG; Biberach Germany
7. The Ottawa Hospital; Ottawa ON Canada