| OF | occipitofrontal; open field [test]; optical fundus; orbitofrontal; osmotic fragility; osteitis fibro... |
|---|---|
| OFAGE | orthogonal field alternation gel electrophoresis |
| OIF | observed intrinsic frequency; oil immersion field; Osteogenesis Imperfecta Foundation |
| PFG | peak flow gauge; pulsed-field gel electrophoresis |
| PFGE | pulsed field gel electrophoresis |