1. AbbVie Inc., Worcester, USA
2. Metroplex Clinical Research Center, University of Texas Southwestern Medical Center, Dallas, USA
3. Compass Research Center, Orlando, USA
4. Charité Research Organisation, Berlin, Germany
5. AbbVie Inc., North Chicago, USA
6. AbbVie Biotherapeutics Inc., Redwood City, USA
7. AbbVie Inc., Cambridge, USA