1. Institute of Statistics; Ulm University; Helmholtzstr. 20 89069 Ulm Germany
2. Boehringer Ingelheim Pharma GmbH & Co. KG; Med. Data Services D123-00-14; Birkendorfer Str. 65 88397 Biberach Germany
3. Innovation Centre; Icon Plc, 2 Globeside, Globeside Business Park Marlow Buckinghamshire SL7 1HZ United Kingdom