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Figure 1 Contrast echocardiogram with injection into the main pulmonary artery demonstrating fetal pulmonary arteriovenous shunting. (A and B) Four chamber view showing the main pulmonary artery (PA), left atrium (LA), and right atrium (RA) before (A) and during (B) contrast injection. (C and D) Magnified view in a different orientation of the LA and left ventricle (LV) before (C) and during (D) contrast injection in another fetus.
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