title: Diagnostic quiz. Case No. 2:  erythema migrans.
authors: Ronald
authors: R
authors: Baughman
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D004890:Erythema / Q000175:diagnosis*; D006801:Humans; D008297:Male; D014060:Tongue Diseases / Q000175:diagnosis*