| Southwest Rheumatology Research LLC | Southwest Rheumatology Research LLC |
| Texas Cancer Center of Mesquite | Texas Cancer Center of Mesquite |
| SMS Clinical Research, LLC | SMS Clinical Research, LLC |
| Southern Endocrinology Associates | Southern Endocrinology Associates |
| PRX Research | PRX Research |
| PRX Research/Dallas Regional Medical Center | PRX Research/Dallas Regional Medical Center |
