CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 45, Issue 3,2011, Pages 249-254, doi:10.3760/cma.j.issn.0253-9624.2011.03.012
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 45, Issue 3,2011, Pages 230-234, doi:10.3760/cma.j.issn.0253-9624.2011.03.008
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 45, Issue 3,2011, Pages 286-287, doi:10.3760/cma.j.issn.0253-9624.2011.03.023
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 45, Issue 3,2011, Pages 284-286, doi:10.3760/cma.j.issn.0253-9624.2011.03.022