CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 42, Issue 5,2008, Pages 369-370, doi:10.3321/j.issn:0253-9624.2008.05.021
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 42, Issue 5,2008, Pages 298-303, doi:10.3321/j.issn:0253-9624.2008.05.003
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 42, Issue 5,2008, Pages 361-363, doi:10.3321/j.issn:0253-9624.2008.05.019
CHINESE JOURNAL OF PREVENTIVE MEDICINE, Volume 42, Issue 5,2008, Pages 329-334, doi:10.3321/j.issn:0253-9624.2008.05.010