Hasegawa K.Tsugawa Y.CHU-LIN TSAIBrown D.F.M.Camargo Jr. C.A.2020-03-232020-03-2320141465-9921https://scholars.lib.ntu.edu.tw/handle/123456789/478089[SDGs]SDG1Frequent utilization of the emergency department for acute exacerbation of chronic obstructive pulmonary diseasejournal article10.1186/1465-9921-15-40247170622-s2.0-84899470932