| PDPH | postdural puncture headache |
|---|---|
| PLPH | post-lumbar puncture headache |
| PSH | past surgical history; postspinal headache |
| TH | tension headache; tetrahydrocortisol; T helper [cell]; theophylline; thorax; thrill; thyrohyoid; thy... |
| PAS | 1) Periodic Acid-Schiff Stain 2) Para-Amino-Salicyclic Acid &nbs... |