Chinese Journal of Preventive Medicine, Volume 48, Issue 4,2014, Pages 318-323, doi:10.3760/cma.j.issn.0253-9624.2014.04.016
Chinese Journal of Preventive Medicine, Volume 48, Issue 4,2014, Pages 281-285, doi:10.3760/cma.j.issn.0253-9624.2014.04.009
Chinese Journal of Preventive Medicine, Volume 48, Issue 4,2014, Pages 241-243, doi:10.3760/cma.j.issn.0253-9624.2014.04.001
Chinese Journal of Preventive Medicine, Volume 48, Issue 4,2014, Pages 276-280, doi:10.3760/cma.j.issn.0253-9624.2014.04.008
Chinese Journal of Preventive Medicine, Volume 48, Issue 4,2014, Pages 324-327, doi:10.3760/cma.j.issn.0253-9624.2014.04.017