作者@article {Zhao1901076 ={赵,Chan-Na和Wu, Qian and Pan, Hai-Feng}, title = {Using Google Trends to investigate global COPD awareness}, volume = {54}, number = {2}, elocation-id = {1901076}, year = {2019}, doi = {10.1183/13993003.01076-2019}, publisher = {European Respiratory Society}, issn = {0903-1936}, URL = {//www.qdcxjkg.com/content/54/2/1901076}, eprint = {//www.qdcxjkg.com/content/54/2/1901076.full.pdf}, journal = {European Respiratory Journal} }