| NHIS | National Health Interview Survey |
|---|---|
| PEI | Patient Exit Interview; phosphate excretion index; physical efficiency index; polyethyleneimine |
| PERI | Psychiatric Epidemiology Research Interview |
| PVI | patient video interview; peripheral vascular insufficiency; perivascular infiltration; positron volu... |
| SCI | Science Citation Index; spinal cord injury; structured clinical interview |