National Medical Journal of China, Volume 97, Issue 25,2017, Pages 1927-1936, doi:10.3760/cma.j.issn.0376-2491.2017.25.003
National Medical Journal of China, Volume 97, Issue 25,2017, Pages 1960-1963, doi:10.3760/cma.j.issn.0376-2491.2017.25.009
National Medical Journal of China, Volume 97, Issue 25,2017, Pages 1988-1990, doi:10.3760/cma.j.issn.0376-2491.2017.25.016
National Medical Journal of China, Volume 97, Issue 25,2017, Pages 1937-1941, doi:10.3760/cma.j.issn.0376-2491.2017.25.004