| OEF | oil immersion field; oxygen extraction fraction |
|---|---|
| O2ER | oxygen extraction ratio |
| rOEF | regional oxygen extraction fraction |
| TA | alkaline tuberculin; arterial tension; axillary temperature; tactile afferent; Takayasu arteritis; t... |
| TAC | tachykinin; terminal antrum contraction; tetracaine, adrenalin, and cocaine; time-activity curve; to... |