| P-P factor | Pellagra Preventive factor = Vitamin G |
|---|---|
| PTC | 1) Percutaneous Transhepatic Cholangiography = PTHC ... |
| TDF | Testicular-Determining Factor = HY Factor |
| TSHRF | Thyrotropin(Thyroid) Stimulating Hormone Releasing Factor = Thyrotropin Releasing Fa... |
| AEF | allogenic effect factor; amyloid enhancing factor; aorto-enteric fistula |