CHINESE JOURNAL OF STOMATOLOGY, Volume 43, Issue 8,2008, Pages 505-507, doi:10.3321/j.issn:1002-0098.2008.08.016
CHINESE JOURNAL OF STOMATOLOGY, Volume 43, Issue 8,2008, Pages 478-482, doi:10.3321/j.issn:1002-0098.2008.08.009
CHINESE JOURNAL OF STOMATOLOGY, Volume 43, Issue 8,2008, Pages 472-475, doi:10.3321/j.issn:1002-0098.2008.08.007