National Medical Journal of China, , Issue 40,2014, Pages 3130-3134, doi:10.3760/cma.j.issn.0376-2491.2014.40.004
National Medical Journal of China, , Issue 40,2014, Pages 3191-3192, doi:10.3760/cma.j.issn.0376-2491.2014.40.018
National Medical Journal of China, , Issue 40,2014, Pages 3135-3139, doi:10.3760/cma.j.issn.0376-2491.2014.40.005