| NGT | nasogastric tube; nominal group technique; normal glucose tolerance |
|---|---|
| NPSH | nonprotein sulhydryl [group] |
| NVG | neovascular glaucoma; nonventilated group |
| OAB | ABO blood group; old age benefits |
| PCG | pancreatico-cholangiography; paracervical ganglion; phonocardiogram; preventive care group; primate ... |