CHINESE JOURNAL OF STOMATOLOGY, Volume 44, Issue 10,2009, Pages 626-628, doi:10.3760/cma.j.issn.1002-0098.2009.10.013
CHINESE JOURNAL OF STOMATOLOGY, Volume 44, Issue 10,2009, Pages 619-620, doi:10.3760/cma.j.issn.1002-0098.2009.10.011
CHINESE JOURNAL OF STOMATOLOGY, Volume 44, Issue 10,2009, Pages 594-597, doi:10.3760/cma.j.issn.1002-0098.2009.10.005