1. Department of Anesthesiology Sidney Kimmel Medical College, Thomas Jefferson University Philadelphia Pennsylvania USA
2. Department of Anesthesiology University of Buffalo/Roswell Park Cancer Institute Buffalo New York USA
3. ESTEVE Pharmaceuticals S.A Barcelona Spain
4. Premier Research Reading UK
5. Chesapeake Research Group LLC Pasadena Maryland USA
6. Optimal Research LLC Austin Texas USA
7. Arizona Research Center Phoenix Arizona USA
8. JBR Clinical Research Salt Lake City Utah USA
9. Anaheim Clinical Trials LLC Anaheim California USA
10. Premier Research Durham North Carolina USA