Hwang YI, Kim EJ, Lee CY, Park S, Choi JH, Park YB, Jang SH, Kim CH, Shin TR, Park SM, Kim DG, Lee MG, Hyun IG, Jung KS
PURPOSE: A new spirometric reference equation was recently developed from the first national chronic obstructive pulmonary disease (COPD) survey in Korea. However, Morris' equation has been preferred for evaluating spirometric...