| MEFV | Maximal Expiratory Flow-Volume |
|---|---|
| MMER | Maximal Mid Expiratory flow Rate = MMEFR |
| MMEFR | Maximal Mid Expiratory Flow Rate = MMER |
| PEFR, PEF | Peak Expiratory Flow Rate |
| EC | effective concentration; ejection click; electrochemical; electron capture; embryonal carcinoma; eme... |