| FCF | fetal cardiac frequency; fibroblast chemotactic factor |
|---|---|
| FIF | feedback inhibition factor; fibroblast interferon; forced inspiratory flow; formaldehyde-induced flu... |
| FPF | false positive fraction; fibroblast pneumocyte factor |
| HDF | host defense factor; human diploid fibroblast |
| MEF | maximal expiratory flow; middle ear fluid; midexpiratory flow; migration enhancement factor; mouse e... |