| RTR | Recreational Therapist, Registered; red blood cell turnover rate; retention time ratio |
|---|---|
| ST | esotropia; scala tympani; scaphotrapezoid; sclerotherapy; sedimentation time; semitendinosus; sensor... |
| TH, Th, | Th T-helper [lymphocyte]; thenar; therapist; therapy; thoracic, thorax; thorium; throat |