Chung, H.-W.H.-W.ChungNagao, M.M.NagaoHSIAO-WEN CHUNG2018-09-102018-09-102001http://www.scopus.com/inward/record.url?eid=2-s2.0-0035138614&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/293586The severity of pulmonary emphysema investigated with fractal analysis: Regional dependencejournal article