%0期刊文章%A Johnson, Miriam J. %A Ekström, Magnus %A Currow, David C. %T观察研究和“旁观者的眼睛”%D 2020 %R 10.1183/13993003.01637-2020 %J欧洲呼吸杂志%P 2001637 %V 56 %N 1 %U //www.qdcxjkg.com/content/erj/56/1/2001637.full.pdf