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Figure 3 The autosomal dominant pattern of inheritance in a family with pathological left ventricular non-compaction. Diastolic horizontal long-axis views of parents (I:1 father and I:2 mother) and children (II:1, II.2) show variable degrees of non-compaction (black dotted arrows) in I:1 (Patient #3; Table1), II:1 (Patient #2; Table 1), and II:2 (Patient #1; Table 1). Patient II:1 likely illustrates partial expression of pathological non-compaction, because her ratio of end-diastolic thicknesses is <2.3 (1.1).