| PAC | Premature Atrial Contraction |
|---|---|
| PAC | papular acrodermatitis of childhood; parent-adult-child; pericarditis-arthropathy-camptodactyly [syn... |
| pac | pachytene |
| ECG | Electro-Cardio-Graphy(-Gram); 심전도 = EKG 1. Conducting System Structu... |
| AAPL | American Academy of Psychiatry and the Law |