title: Testing your diagnostic skills.
authors.forename: Ron
authors.initials: R
authors.lastname: Baughman
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis*; D017789:Granuloma, Pyogenic / Q000175:diagnosis*; D006801:Humans; D008297:Male; D009059:Mouth Diseases / Q000175:diagnosis*; D009062:Mouth Neoplasms / Q000175:diagnosis*