| TET | tetracycline; total ejection time; total exchange thyroxine; treadmill exercise test |
|---|---|
| XEF | excess ejection fraction |
| EF | Ejection fraction |
| AV | 1) Azygo(u)s Vein(AV)(= Vena Azygo(u)s); 기정맥(奇靜脈) 1) Atrio-Ventricular |
| AV node | Atrio-Ventricular node; 방실 결절 0.1 sec Delay |