| PSH | past surgical history; postspinal headache |
|---|---|
| TH | tension headache; tetrahydrocortisol; T helper [cell]; theophylline; thorax; thrill; thyrohyoid; thy... |
| FRC | Functional Residual Capacity |
| NYHA | New York Heart Association Heart Disease에 대한 Functional Classification &nbs... |
| AVNFRP | atrioventricular node functional refractory period |