CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 42, Issue 9,2008, Pages 672-676, doi:10.3321/j.issn:0253-9624.2008.09.013
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 42, Issue 9,2008, Pages 695-696, doi:10.3321/j.issn:0253-9624.2008.09.021
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 42, Issue 9,2008, Pages 644-647, doi:10.3321/j.issn:0253-9624.2008.09.007
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 42, Issue 9,2008, Pages 677-680, doi:10.3321/j.issn:0253-9624.2008.09.014
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 42, Issue 9,2008, Pages 636-639, doi:10.3321/j.issn:0253-9624.2008.09.005