National Medical Journal of China, Volume 94, Issue 46,2014, Pages 3623-3628, doi:10.3760/cma.j.issn.0376-2491.2014.46.003
National Medical Journal of China, Volume 94, Issue 46,2014, Pages 3691-3693, doi:10.3760/cma.j.issn.0376-2491.2014.46.022
National Medical Journal of China, Volume 94, Issue 46,2014, Pages 3652-3654, doi:10.3760/cma.j.issn.0376-2491.2014.46.010
National Medical Journal of China, Volume 94, Issue 46,2014, Pages 3661-3665, doi:10.3760/cma.j.issn.0376-2491.2014.46.013
National Medical Journal of China, Volume 94, Issue 46,2014, Pages 3658-3660, doi:10.3760/cma.j.issn.0376-2491.2014.46.012