Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Chin Kook Rhee and Jin Woo Kim and Yong Il Hwang and Jin Hwa Lee and Ki-Suck Jung and Myung Goo Lee and Kwang Ha Yoo and Sang Haak Lee and Kyeong-Cheol Shin and Hyoung Kyu Yoon,Discrepancies between modified Medical Research Council dyspnea score and COPD assessment test score in patients with COPD,International Journal of Chronic Obstructive Pulmonary Disease,1178-2005,Informa UK Limited,2015-08,10,,1623,https://cir.nii.ac.jp/crid/1363670318595767552,https://doi.org/10.2147/copd.s87147