@book{56513, author = {R.A. Cawson and E.W. Odell. and Odell, E. W.}, title = {Cawson's essentials of oral pathology and oral medicine /}, publisher = {Elsevier,}, year = {2017.}, address = {Edinburgh ;}, edition = {9th ed.}, url = {http://www.loc.gov/catdir/toc/ecip0716/2007017756.html} }