| NBI | neutrophil bactericidal index; no bone injury; non-battle injury |
|---|---|
| PI | first meiotic prophase; isoelectric point; pacing impulse; package insert; pancreatic insufficiency;... |
| PRICES | protection, rest, ice, compression, elevation, support [primary treatment of tendinitis and overuse ... |
| IDBS | infantile diffuse brain sclerosis |
| TBI | thyroid-binding index; thyroxine-binding index; tooth-brushing instruction; total-body irradiation; ... |