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. 2020 Feb 19;21:37. doi: 10.1186/s12881-020-0972-y

Fig. 2.

Fig. 2

M mode of right and left ventricles (age: 9.5 months). Left ventricle is extremely enlarged (50.7 mm), with preserved ejection fraction (78.9%). RV: right ventricle; LV: left ventricle