National Medical Journal of China, Volume 100, Issue 37,2020, Pages 2934-2939, doi:10.3760/cma.j.cn112137-20200116-00100
National Medical Journal of China, Volume 100, Issue 37,2020, Pages 2908-2912, doi:10.3760/cma.j.cn112137-20200301-00525
National Medical Journal of China, Volume 100, Issue 37,2020, Pages 2897-2902, doi:10.3760/cma.j.cn112137-20200421-01256
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National Medical Journal of China, Volume 100, Issue 37,2020, Pages 2919-2923, doi:10.3760/cma.j.cn112137-20200117-00120