| ECG | Electro-Cardio-Graphy(-Gram); 심전도 = EKG 1. Conducting System Structu... |
|---|---|
| Gr1P0AB1 | one pregnancy, no births, one abortion |
| SDU | standard deviation unit; step-down unit |
| STEP | Sequential Test of Educational Programs |
| CX | cervix; chest x-ray; connexin; critical experiment |