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Branch template. (a) The cross-section template provided in (Zhang et al., 2007); (b) the new circle-square template; (c) the circle-square template with epicardial and endocardial boundaries; and (d) the circle-square template conformal to the epicardial (green points) and endocardial (blue points) boundaries. The black point is the center, and the red points locate at the square edges.
