Ключевые слова: 3d, abnormal heartbeat, atria, atrioventricular node, atrium, auricular, av, av junction, background, beat, cardiac, cardiogram, cardiograph, cardiology, condition, diagnosis, disease, disorder, ecg, ecg trace, echocardiogram, healthcare, heart, illustration, junction, junctional, junctional ectopic rhythm, junctional escape rhythm, junctional rhythm, medical, medicine, no pwaves, pwaves, regular, research, rhythm, sa node, science, scientific, ventricle, ventricular,