Silva BRA, Rodrigues RS, Rufino R, Costa CH, Vilela VS, Levy RA, Guimarães ARM, Carvalho ARS, Lopes AJ. Computed tomography trachea volumetry in patients with scleroderma: Association with clinical and functional findings. PLoS One. 2018 Aug 1;13(8):e0200754. PMID: 30067820; PMCID: PMC6070209.