International Journal of Respiration, Volume 40, Issue 18,2020, Pages 1413-1417, doi:10.3760/cma.j.cn131368-20200410-00276
International Journal of Respiration, Volume 40, Issue 18,2020, Pages 1391-1395, doi:10.3760/cma.j.cn131368-20200407-00259
International Journal of Respiration, Volume 40, Issue 18,2020, Pages 1387-1390, doi:10.3760/cma.j.cn131368-20200311-00149
International Journal of Respiration, Volume 40, Issue 18,2020, Pages 1409-1412, doi:10.3760/cma.j.cn131368-20200416-00308
International Journal of Respiration, Volume 40, Issue 18,2020, Pages 1436-1440, doi:10.3760/cma.j.cn131368-20200304-00120