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Fig. 7. Regional variation in elastic modulus at a stress of 2.0 MPa. Elastic
moduli increased posteriorly at a similar rate at both stress levels. A
distinct increase exists between the moduli of anterior regions
(ae) and posterior regions
(fi) at both stresses, indicating a sharp increase in
skin stiffness. Symbols represent means ±
S.E.M. (a, c, e, i, N=10; b,
N=9; d, fh, N=11). Results of a Tukey multiple
comparison test identify homogeneous regions.