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Figure 1: Pulse wave Doppler during fetal echocardiography showing fetal tachyarrhythmia (heart rate: 228 bpm) with 1:1 atrioventricular conduction

Figure 1: Pulse wave Doppler during fetal echocardiography showing fetal tachyarrhythmia (heart rate: 228 bpm) with 1:1 atrioventricular conduction