| SD | Sandhoff disease; senile dementia; septal defect; serologically defined; serologically detectable; s... |
|---|---|
| TND | term normal delivery |
| UD | ulcerative dermatosis; ulnar deviation; undetermined; underdeveloped; unit dose; urethral dilatation... |
| VVD | vaginal vertex delivery |
| ECG | Electro-Cardio-Graphy(-Gram); 심전도 = EKG 1. Conducting System Structu... |