| OTA | occupational therapy assistant; Office of Technology Assessment; ornithine transaminase; orthotoluid... |
|---|---|
| OTR | Ovarian Tumor Registry; Occupational Therapist, Registered |
| OTReg | Occupational Therapist, Registered |
| PASSOR | Physiatric Association for Spine, Sports, and Occupational Rehabilitation |
| ROT | real oxygen transport; remedial occupational therapy; right occipito-transverse [fetal position] |