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Fractal representation of a symmetrical bifurcation (a) and a non-symmetrical bifurcation (b) of a vascular tree. Reprinted from Fractal Dimensions and Multifractility in Vascular Branching, M. Zamir, J. Theor. Biol. (2001) 212, 183–190 (Issue 2), Copyright (2001), with permission from Elsevier [150].
