CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 42, Issue 10,2008, Pages 768-771, doi:10.3321/j.issn:0253-9624.2008.10.016
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 42, Issue 10,2008, Pages 774, doi:10.3321/j.issn:0253-9624.2008.10.020
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 42, Issue 10,2008, Pages 773, doi:10.3321/j.issn:0253-9624.2008.10.018
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 42, Issue 10,2008, Pages 753-757, doi:10.3321/j.issn:0253-9624.2008.10.012
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 42, Issue 10,2008, Pages 758-761, doi:10.3321/j.issn:0253-9624.2008.10.013