| MDUO | myocardial disease of unknown origin |
|---|---|
| MF | magnetic field; meat free; medium frequency; megafarad; membrane filler; merthiolate-formaldehyde [s... |
| MIDA | myocardial ischemia dynamic analysis |
| MMR | mass miniature radiography; masseter muscle rigidity; maternal mortality rate; measles-mumps-rubella... |
| MO2 | myocardial oxygen [utilization] |