Erratum Erratum to “Diagnostic imaging of osteoporosis and sarcopenia: a narrative review” Carmelo Messin, Gabriele Maffi, Jacopo Antonino Vitale, Fabio Massimo Ulivieri, Giuseppe Guglielmi, Luca Maria Sconfienza Abstract Erratum to: Quant Imaging Med Surg 2018;8:86-99.