title: Fourth World Workshop on Oral Medicine. Introduction.
authors: Peter B
authors: PB
authors: Lockhart
authors: David
authors: D
authors: Wray
authors: Douglas E
authors: DE
authors: Peterson
authors: Martin S
authors: MS
authors: Greenberg
mesh_terms: D003226:Congresses as Topic / Q000458:organization & administration; D006801:Humans; D009059:Mouth Diseases; D019242:Oral Medicine