| A2 P2 | aortic second sound; pulmonary second sound |
|---|---|
| ECG | Electro-Cardio-Graphy(-Gram); 심전도 = EKG 1. Conducting System Structu... |
| A2 | Aortic Component of the Second Heart Sound(S2) |
| P2 | Pulmonary Component of the Second Heart Sound(S2) |
| S2 | Second Heart Sound |