| ECG | Electro-Cardio-Graphy(-Gram); 심전도 = EKG 1. Conducting System Structu... |
|---|---|
| L/N | letter/numerical [system] |
| NA | Avogadro constant or number; nalidixic acid; Narcotics Anonymous; network administrator; neuraminida... |
| NRS | neurobehavioral rating scale; normal rabbit serum; normal reference serum; numerical rating scale |
| VNDPT | visual numerical discrimination pre-test |