| MLTI | mixed lymphocyte target interaction |
|---|---|
| MTI | malignant teratoma, intermediate; minimum time interval; moving target indicator |
| NTE | neuropathy target esterase; neurotoxic esterase; not to exceed |
| OTC | ornithine transcarbamylase; oval target cell; over-the-counter; oxytetracycline |
| PTV | planning target volume; posterior tibial vein |