| PTI | pancreatic trypsin inhibitor; persistent tolerant infection; Pictorial Test of Intelligence; placent... |
|---|---|
| PVC | peripheral venous catheterization; persistent vaginal cornification; polyvinyl chloride; postvoiding... |
| AHTS | antihuman thymus serum |
| ATC | activated thymus cell; around the clock |
| BTE | behind the ear [hearing aid]; bovine thymus extract |