1. Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877-0378, United States
2. Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877-0378, United States
3. Discovery Research, Medicinal Chemistry, Boehringer Ingelheim Pharma GmbH & Co. KG, 65 Birkendorfer Strasse, Biberach an der Riss 88400, Germany