| LV | laryngeal vestibule; lateral ventricle; lecithovitellin; left ventricle, left ventricular; leucovori... |
|---|---|
| MKV | killed measles vaccine |
| MMR | mass miniature radiography; masseter muscle rigidity; maternal mortality rate; measles-mumps-rubella... |
| MOPV | monovalent oral poliovirus vaccine |
| MRV | minute respiratory volume; mixed respiratory vaccine |