| Mo-MSV | Moloney murine sarcoma virus |
|---|---|
| MOS | medial orbital sulcus; Medical Outcomes Study; microsomal ethanol-oxidizing system; Moloney murine s... |
| MPSV | myeloproliferative sarcoma virus |
| OS | left eye [Lat. oculus sinister]; occipitosacral; occupational safety; office surgery; Omenn syndrome... |
| PR-RSV | Prague Rous sarcoma virus |