| PPHN | persistent pulmonary hypertension of the newborn |
|---|---|
| PTA | parallel tubular arrays; parathyroid adenoma; percutaneous transluminal angioplasty; peroxidase-labe... |
| PTI | pancreatic trypsin inhibitor; persistent tolerant infection; Pictorial Test of Intelligence; placent... |
| PVC | peripheral venous catheterization; persistent vaginal cornification; polyvinyl chloride; postvoiding... |