Cook, R. B., Curwen, C., Tasker, T., & Zioupos, P. (2010). Fracture toughness and compressive properties of cancellous bone at the head of the femur and relationships to non-invasive skeletal assessment measurements. Medical engineering & physics, 32(9), 991-997. https://doi.org/10.1016/j.medengphy.2010.06.014