University of Minnesota Clinical Research Unit (CRU) - Minneapolis, Minnesota

Clinical Assessment & Treatment - Des Moines, Iowa

Be Well Clinical Studies - Lincoln, Nebraska

Cotton O’Neil Clinical Research Center - Topeka, Kansas

Clinical Assentment & Psychological Services - Poplar Bluff, Missouri

University Clinical Health - Memphis, Tennessee

Quality Clinical Research Inc - Omaha, Nebraska

Clinical Partners - Stillwater, Oklahoma

Clinical Pathology Laboratories (CPL) - Oklahoma City Regional Office - Oklahoma City, Oklahoma

Clinical Pharmaceutical Trials - Tulsa, Oklahoma