| MRH | melanocyte-stimulating hormone-releasing hormone; multicentric reticulohistiocytosis |
|---|---|
| MRIF | melanocyte[-stimulating hormone] release-inhibiting factor |
| MRIH | melanocyte[-stimulating hormone] release-inhibiting hormone |
| MSF | macrophage slowing factor; macrophage spreading factor; Medicins sans Frontieres [Doctors without Bo... |
| MSHIF | melanocyte-stimulating hormone-inhibiting factor |