The Concavity of the Maximal Expiratory Flow-Volume Curve Reflects the Extent of Emphysema in Obstructive Lung Diseases.
Mochizuki F, Iijima H, Watanabe A, Tanabe N, Sato S, Shiigai M, Fujiwara K, Shimada T, Ishikawa H, Kanazawa J, Yatagai Y, Masuko H, Sakamoto T, Muro S, Hizawa N.