| MAF | macrophage activation factor; macrophage agglutinating factor; maximum atrial fragmentation; minimum... |
|---|---|
| OAF | open air factor; osteoclast activating factor |
| OGF | ovarian growth factor; oxygen gain factor |
| OSF | organ system failure; osteoclast-stimulating factor; outer spiral fiber; overgrowth stimulating fact... |
| OTF | octamer-binding transcription factor; oral transfer factor |