Calcaneal quantitative ultrasound (QUS) and dual X-ray absorptiometry (DXA) bone analysis in adult HIV-positive patients Clò, A.; Gibellini, D.; Damiano, D.; Vescini, F.; Ponti, C.; Morini, S.; Miserocchi, A.; Musumeci, G.; Calza, L.; Colangeli, V.; Viale, P.; Re, M.C.; Borderi, M. New Microbiologica 38(3): 345-356 2015 1121-7138 https://eurekamag.com/research/057/341/057341992.php