Gazourian L, Thedinger WB, Regis SM, Pagura EJ, Price LL, Gawlik M, Stefanescu CF, Lamb C, Rieger-Christ KM, Singh H, Casasola M, Walker AR, Rupal A, Patel AS, Come CE, Sanayei AM, Long WP, Rizzo GS, McKee AB, Washko GR, San Jose Estepar R, Wald C, McKee BJ, Thomson CC, Liesching TN. Qualitative emphysema and risk of COPD hospitalization in a multicenter CT lung cancer screening cohort study. Respir Med. 2021 01; 176:106245.