CHINESE JOURNAL OF STOMATOLOGY, Volume 43, Issue 9,2008, Pages 537-541, doi:10.3321/j.issn:1002-0098.2008.09.008
CHINESE JOURNAL OF STOMATOLOGY, Volume 43, Issue 9,2008, Pages 568-570, doi:10.3321/j.issn:1002-0098.2008.09.016
CHINESE JOURNAL OF STOMATOLOGY, Volume 43, Issue 9,2008, Pages 513-514, doi:10.3321/j.issn:1002-0098.2008.09.001