KOLTHOFF, Niels; EIKEN, Pia; BÄRENHOLDT, Olaf; NIELSEN, Stig Pors. Ultrasound measurements of the os calcis:Side differences and prediction of bone density in 39 persons. Acta Orthopaedica, [S. l.], v. 66, n. 3, p. 278–282, 1995. DOI: 10.3109/17453679508995542. Disponível em: https://actaorthop.org/actao/article/view/21206. Acesso em: 19 may. 2026.