@misc{indiciaebbe52be04f91, title = {Aphthous ulcers: a difficult clinical entity.}, author = {R G Shashy and M B Ridley}, doi = {10.1053/ajot.2000.18872}, url = {https://pubmed.ncbi.nlm.nih.gov/11115523/}, note = {Source identifier: 11115523} }