PRA International, Zuidlaren, Netherlands
Celerion, Phoenix, Arizona, United States
Duke University Medical Center, Durham, North Carolina, United States
Parexel International, Early Phase Clinical Unit, Los Angeles, California, United States
Quintiles Phase I Services, Overland Park, Kansas, United States
Quotient Clinical, Edinburgh, United Kingdom
Charles River Clinical Studies, NW, Tacoma, Washington, United States
Charles River Clinical Services Northwest, Tacoma, Washington, United States