National Medical Journal of China, Volume 92, Issue 4,2012, Pages 217-218, doi:10.3760/cma.j.issn.0376-2491.2012.04.001
National Medical Journal of China, Volume 92, Issue 4,2012, Pages 250-253, doi:10.3760/cma.j.issn.0376-2491.2012.04.011
National Medical Journal of China, Volume 92, Issue 4,2012, Pages 276-278, doi:10.3760/cma.j.issn.0376-2491.2012.04.017
National Medical Journal of China, Volume 92, Issue 4,2012, Pages 220,249,258,263,268,275,278,281,284,
National Medical Journal of China, Volume 92, Issue 4,2012, Pages 272-275, doi:10.3760/cma.j.issn.0376-2491.2012.04.016