| MEF | maximal expiratory flow; middle ear fluid; midexpiratory flow; migration enhancement factor; mouse e... |
|---|---|
| mEGF | mouse epidermal growth factor |
| MEL | metabolic equivalent level; mouse erythroleukemia |
| MGG | May-Grunwald-Giemsa [staining]; molecular and general genetics; mouse gammaglobulin; multinucleated ... |
| MHV | magnetic heart vector; middle hepatic vein; mouse hepatitis virus |