| ULPA | ultra low penetration air filter |
|---|---|
| ECG | Electro-Cardio-Graphy(-Gram); 심전도 = EKG 1. Conducting System Structu... |
| ACH | acetylcholine; achalasia; active chronic hepatitis; adrenocortical hormone; amyotrophic cerebellar h... |
| DD | dangerous drug; data definition; day of delivery; degenerated disc; degenerative disease; delusional... |
| DOA | date of admission; dead on arrival; Department of Agriculture; depth of anesthesia; differential opt... |
| PD | Pocket Depth |
|---|---|
| PPD | Pocket Probing Depth |
| PD | Probing Depth |
| PPD | Probing Pocket Depth |