International Journal of Respiration, Volume 40, Issue 6,2020, Pages 450-454, doi:10.3760/cma.j.cn131368-20190811-01139
International Journal of Respiration, Volume 40, Issue 6,2020, Pages 423-429, doi:10.3760/cma.j.cn131368-20191013-01402
International Journal of Respiration, Volume 40, Issue 6,2020, Pages 442-449, doi:10.3760/cma.j.cn131368-20190312-00334
International Journal of Respiration, Volume 40, Issue 6,2020, Pages 460-464, doi:10.3760/cma.j.cn131368-20190510-00722
International Journal of Respiration, Volume 40, Issue 6,2020, Pages 437-441, doi:10.3760/cma.j.cn131368-20190906-01252