National Medical Journal of China, Volume 91, Issue 36,2011, Pages 2592, doi:10.3760/cma.j.issn.0376-2491.2011.36.023
National Medical Journal of China, Volume 91, Issue 36,2011, Pages 2555-2557, doi:10.3760/cma.j.issn.0376-2491.2011.36.011
National Medical Journal of China, Volume 91, Issue 36,2011, Pages 2591, doi:10.3760/cma.j.issn.0376-2491.2011.36.022
National Medical Journal of China, Volume 91, Issue 36,2011, Pages 2587, doi:10.3760/cma.j.issn.0376-2491.2011.36.020
National Medical Journal of China, Volume 91, Issue 36,2011, Pages 2582-2584, doi:10.3760/cma.j.issn.0376-2491.2011.36.018