The paradoxical response to short-acting bronchodilator administration in patients with chronic obstructive pulmonary disease

Hong-Joon Shin, Tae-Ok Kim, Yu-Il Kim, Sang-Hoon Kim, Hyun Kuk Kim, Yong-Hyun Kim, Min Kwang Byun, Ki-Suck Jung, Kwang-Ha Yoo, Jae Seung Lee, Sung-Chul Lim, KOCOSS Cohort Study Group