The toluidine blue test in lesions of the oral cavity.
D002294:Carcinoma, Squamous Cell / Q000175:diagnosis; D004396:Coloring Agents; D006801:Humans; D008545:Melanoma / Q000175:diagnosis; D008722:Methods; D009059:Mouth Diseases / Q000175:diagnosis*; D009062:Mouth Neoplasms / Q000175:diagnosis*; D013194:Staining and Labeling; D014456:Ulcer / Q000175:diagnosis
D004396:Coloring Agents