National Medical Journal of China, Volume 99, Issue 44,2019, Pages 3455,3465,3493,3502,3508,3520,
National Medical Journal of China, Volume 99, Issue 44,2019, Pages 3507-3508, doi:10.3760/cma.j.issn.0376-2491.2019.44.012
National Medical Journal of China, Volume 99, Issue 44,2019, Pages 3477-3480, doi:10.3760/cma.j.issn.0376-2591.2019.44.006
National Medical Journal of China, Volume 99, Issue 44,2019, Pages 3481-3486, doi:10.3760/cma.j.issn.0376-2491.2019.44.007
National Medical Journal of China, Volume 99, Issue 44,2019, Pages 3503-3506, doi:10.3760/cma.j.issn.0376-2491.2019.44.011