| OA | obstructive apnea; occipital artery; occipito-anterior; occiput anterior; octanoic acid; ocular albi... |
|---|---|
| PCA | para-chloramphetamine; parietal cell antibody; passive cutaneous anaphylaxis; patient care assistant... |
| SIA | serum inhibitory activity; stress-induced analgesia; stress-induced anesthesia; subacute infectious ... |
| TENS | Transcutaneous Electrical Nerve Stimulation |
| AFORMED | alternating failure of response, mechanical, [to] electrical depolarization |