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Evolution of the ratio r=EPD/EXD as a function of the ratio of the width over the inside length of the structural element of the ALH unit cell, w/l. The dashed line indicates the maximum anisotropy, which occurred at the ratio w/l=0.25 published in Engelmayr et al. (2008). Conceptually, the two arrows illustrate the possible changes in ALH scaffold anisotropy with changes in initial strut width (i.e., a design parameter) or scaffold degradation.
