@book{27025, author = {Cawson, R. A. and Odell, E. W.}, title = {Cawson's essentials of oral pathology and oral medicine /}, publisher = {Churchill Livingstone/Elsevier,}, year = {2008.}, address = {China ;}, edition = {8th ed.}, url = {http://www.loc.gov/catdir/toc/ecip0716/2007017756.html} }