| HFIF | human fibroblast interferon |
|---|---|
| MEF | maximal expiratory flow; middle ear fluid; midexpiratory flow; migration enhancement factor; mouse e... |
| NGSF | nongenital skin fibroblast |
| NHDF | normal human diploid fibroblast |
| NIF | negative inspiratory force; neutrophil immobilizing factor; nonintestinal fibroblast |