| MTI | malignant teratoma, intermediate; minimum time interval; moving target indicator |
|---|---|
| NPJT | nonparoxysmal atrioventricular junctional tachycardia |
| PAVNRT | paroxysmal atrioventricular nodal reciprocal tachycardia |
| PI | first meiotic prophase; isoelectric point; pacing impulse; package insert; pancreatic insufficiency;... |
| P-R | the time between the P wave and the beginning of the QRS complex in electrocardiography [interval] |