Erratum: “Elastic Anisotropy of Human Cortical Bone Secondary Osteons Measured by Nanoindentation” [Journal of Biomechanical Engineering, 2009, 131(2), p. 021001]

Three-dimensional representation of the elongation modulus $ε(n)$ in function of a direction vector $n$ with the bulk modulus $κ(n)$ superimposed: the shape of the surfaces represents $ε$⁠, while the color represents $κ$⁠. (a) Mean osteon in cortical bone tissue measured by means of nanoindentation. (b) Cortical bone at the macroscopic level. Units are in [GPa].