| I:E | inspiratory/expiratory [ratio] |
|---|---|
| LEEP | left end-expiratory pressure; loop electrosurgical excision procedure |
| MEF | maximal expiratory flow; middle ear fluid; midexpiratory flow; migration enhancement factor; mouse e... |
| MEF50 | mean maximal expiratory flow |
| MEFR | maximal expiratory flow rate |