| http://www.w3.org/ns/prov#value | - The method includes using a device associated with an ultrasonic system to rotate an image in a transverse plane of a four-chamber view of a fetal heart about a Z-axis of a coordinate system in which an X-axis is a horizontal axis, a Y-axis is a vertical axis, and the Z-axis points in a perpendicular direction with respect to a plane defined by the X-axis and the Y-axis, so a spine of the fetus is
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