Chinese Journal of Preventive Medicine, Volume 46, Issue 7,2012, Pages 648-650, doi:10.3760/cma.j.issn.0253-9624.2012.07.016
Chinese Journal of Preventive Medicine, Volume 46, Issue 7,2012, Pages 593-597, doi:10.3760/cma.j.issn.0253-9624.2012.07.004
Chinese Journal of Preventive Medicine, Volume 46, Issue 7,2012, Pages 655-656, doi:10.3760/cma.j.issn.0253-9624.2012.07.019
Chinese Journal of Preventive Medicine, Volume 46, Issue 7,2012, Pages 640-643, doi:10.3760/cma.j.issn.0253-9624.2012.07.014
Chinese Journal of Preventive Medicine, Volume 46, Issue 7,2012, Pages 612,