PT - 期刊文章AU - 张，福泉AU - 巴拉诺瓦，Ancha Ti - 吸烟量增加Covid-19 Aid风险 - 10.1183/13993003.01273/13993003.01273/13993003.01273/13993003.01273/13993003.01273/13993003.01273-13993003。www.qdcxjkg.com/content/early/2021/07/21/13993003.01273-2021.short 4100 - //www.qdcxjkg.com/content/early/2021/07/21/13993003.full