| MF | magnetic field; meat free; medium frequency; megafarad; membrane filler; merthiolate-formaldehyde [s... |
|---|---|
| MSF | macrophage slowing factor; macrophage spreading factor; Medicins sans Frontieres [Doctors without Bo... |
| PIF | paratoid isoelectric focusing variant protein; peak inspiratory flow; proinsulin-free; prolactin-inh... |
| SPF | skin protection factor; specific-pathogen free; spectrophotofluorometer; S-phase fraction; split pro... |
| BSF | back scatter factor; B-cell stimulatory factor; busulfan |