| HOS | health opinion survey; Holt-Oram syndrome; human osteosarcoma; hypoosmotic swelling [test] |
|---|---|
| IMO | idiopathic multicentric osteolysis |
| MR | Maddox rods; magnetic resistance; magnetic resonance; mandibular reflex; mannose-resistant; may repe... |
| MRH | melanocyte-stimulating hormone-releasing hormone; multicentric reticulohistiocytosis |
| OS | left eye [Lat. oculus sinister]; occipitosacral; occupational safety; office surgery; Omenn syndrome... |