CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 45, Issue 4,2011, Pages 310-312, doi:10.3760/cma.j.issn.0253-9624.2011.04.005
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 45, Issue 4,2011, Pages 374-375, doi:10.3760/cma.j.issn.0253-9624.2011.04.020
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 45, Issue 4,2011, Pages 330-334, doi:10.3760/cma.j.issn.0253-9624.2011.04.009
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 45, Issue 4,2011, Pages 318-322, doi:10.3760/cma.j.issn.0253-9624.2011.04.007
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 45, Issue 4,2011, Pages 378-380, doi:10.3760/cma.j.issn.0253-9624.2011.04.022