1. Boehringer Ingelheim Pharma GmbH & Co. KG, Birkendorfer Strasse 65, D-88397 Biberach/Riss, Germany, CyBio Screening GmbH, Winzerlaer Strasse 2, D-07745 Jena, Germany, and Boehringer Ingelheim Austria GmbH, Dr. Boehringer Gasse 5-11, A-1121 Vienna, Austria