| IRF | idiopathic retroperitoneal fibrosis; impulse response function; interferon regulatory factor; intern... |
|---|---|
| KF | Kenner-fecal medium; kidney function; Klippel-Feil [syndrome] |
| LFS | lateral facet syndrome; Li-Fraumeni syndrome; limbic forebrain structure; liver function series |
| LSF | linear spread function; lymphocyte-stimulating factor |
| LVF | left ventricular failure; left ventricular function; left visual field; low-voltage fast; low-voltag... |