1. Boehringer Ingelheim Pharma GmbH & Co. KG; Biberach an der Riss Germany
2. Boehringer Ingelheim Pharma GmbH & Co. KG; Ingelheim am Rhein Germany
3. Clinical Research; SGS, Life Science Services; Antwerpen Belgium
4. Boehringer Ingelheim Pharmaceuticals, Inc.; Ridgefield Connecticut USA