CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 45, Issue 7,2011, Pages 653-656, doi:10.3760/cma.j.issn.0253-9624.2011.07.018
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 45, Issue 7,2011, Pages 583-587, doi:10.3760/cma.j.issn.0253-9624.2011.07.003
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 45, Issue 7,2011, Pages 588-592, doi:10.3760/cma.j.issn.0253-9624.2011.07.004
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 45, Issue 7,2011, Pages 657-660, doi:10.3760/cma.j.issn.0253-9624.2011.07.019
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 45, Issue 7,2011, Pages 609-611, doi:10.3760/cma.j.issn.0253-9624.2011.07.009