| MEF | maximal expiratory flow; middle ear fluid; midexpiratory flow; migration enhancement factor; mouse embryo fibroblast |
|---|---|
| MEF50 | mean maximal expiratory flow |
| MEFR | Maximal Expiratory Flow Rate |
| MEFR | maximal expiratory flow rate |
| MEFV | Maximal Expiratory Flow-Volume |
| MEFV | maximal expiratory flow volume |