National Medical Journal of China, Volume 96, Issue 6,2016, Pages 442-446, doi:10.3760/cma.j.issn.0376-2491.2016.06.007
National Medical Journal of China, Volume 96, Issue 6,2016, Pages 438-441, doi:10.3760/cma.j.issn.0376-2491.2016.06.006
National Medical Journal of China, Volume 96, Issue 6,2016, Pages 401-403, doi:10.3760/cma.j.issn.0376-2491.2016.06.001
National Medical Journal of China, Volume 96, Issue 6,2016, Pages 425-430, doi:10.3760/cma.j.issn.0376-2491.2016.06.003
National Medical Journal of China, Volume 96, Issue 6,2016, Pages 468-471, doi:10.3760/cma.j.issn.0376-2491.2016.06.013