TY  - RPRT
TI  - Oral ulceration: a diagnostic problem.
AU  - C E Grattan
AU  - C Scully
PY  - 1986
DO  - 10.1136/bmj.292.6528.1093
UR  - https://pubmed.ncbi.nlm.nih.gov/3084011/
ID  - 3084011
ER  -