Dretakis, Emmanouel C, George M Kontakis, and Constantine E Dretakis. 1994. “Decreased Broadband Ultrasound Attenuation of the Calcaneus in Women With Fragility Fracture: 85 Colles’ and Hip Fracture Cases Versus 77 Normal Women”. Acta Orthopaedica 65 (3):305-8. https://doi.org/10.3109/17453679408995458.