National Medical Journal of China, Volume 100, Issue 45,2020, Pages 3649-3652, doi:10.3760/cma.j.cn112137-20200308-00642
National Medical Journal of China, Volume 100, Issue 45,2020, Pages 3614-3621, doi:10.3760/cma.j.cn112137-20200504-01412
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National Medical Journal of China, Volume 100, Issue 45,2020, Pages 3595, doi:10.3760/cma.j.issn.0376-2491.2020.45.101
National Medical Journal of China, Volume 100, Issue 45,2020, Pages 3596-3601, doi:10.3760/cma.j.cn112137-20200610-01813