National Medical Journal of China, , Issue 21,2014, Pages 1671-1673, doi:10.3760/cma.j.issn.0376-2491.2014.21.019
National Medical Journal of China, , Issue 21,2014, Pages 1673-1673, doi:10.3760/j.issn.0376-2491.2014.21.026
National Medical Journal of China, , Issue 21,2014, Pages 1643-1646, doi:10.3760/cma.j.issn.0376-2491.2014.21.011
National Medical Journal of China, , Issue 21,2014, Pages 1647-1650, doi:10.3760/cma.j.issn.0376-2491.2014.21.012
National Medical Journal of China, , Issue 21,2014, Pages 1618-1622, doi:10.3760/cma.j.issn.0376-2491.2014.21.005