| IF | idiopathic fibroplasia; idiopathic flushing; immersion foot; immunofluorescence; indirect fluorescen... |
|---|---|
| IPFM | integral pulse frequency modulation |
| LF | labile factor; lactoferrin; laryngofissure; Lassa fever; latex fixation; left foot; left forearm; le... |
| lf | lactoferrin; low frequency |
| LFHL | low-frequency hearing loss |