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Table 2 Keyak's fomula

From: The influence of pelvic tilt on stress distribution in the acetabulum: finite element analysis

Bone density (p; g/cm3) Young’s modulus (E; MPa)
p = 0 0.001
0 < p ≤ 0.27 33900p2.20
0.27 < p ≤ 0.60 5307p + 469
0.60 ≤ p 10200p2.01