Lee, HyunRhee, Chin KookLee, Byung-JaeChoi, Dong-ChullKim, Jee-AeKim, Sang HyunJeong, YoolwonKim, Tae-HyungChon, Gyu RakJung, Ki-SuckLee, Sang HaakPrice, DavidYoo, Kwang HaPark, Hye Yun2016-06-102016-06-102016-04-15Lee, H, Rhee, C K, Lee, B-J, Choi, D-C, Kim, J-A, Kim, S H, Jeong, Y, Kim, T-H, Chon, G R, Jung, K-S, Lee, S H, Price, D, Yoo, K H & Park, H Y 2016, 'Impacts of coexisting bronchial asthma on severe exacerbations in mild-to-moderate COPD : results from a national database', International journal of chronic obstructive pulmonary disease , vol. 11, no. 1, pp. 775-783. https://doi.org/10.2147/COPD.S959541176-9106http://hdl.handle.net/2164/6102Acknowledgments The authors would like to thank Kyungjoo Kim for the confident statistical analyses in this work. This study was supported by a grant (2014P3300300) from the Korea Centers for Disease Control and Prevention. The abstract of this paper was presented at the Asian Pacific Society of Respirology 20th Congress as an oral presentation with interim findings. The poster’s abstract was published in “Poster Abstracts” in Respirology.9540304engbronchial asthmachronic obstructive pulmonary diseaseacute exacerbationR MedicineRJournal article10.2147/COPD.S95954111