Vital staining of esophageal and gastric mucosa: not vital but may be helpful.
D003224:Congo Red; D004938:Esophageal Neoplasms / Q000175:diagnosis*; D004945:Esophagoscopy; D004947:Esophagus / Q000473:pathology; D005753:Gastric Mucosa / Q000473:pathology; D005773:Gastroscopy; D006801:Humans; D007454:Iodides; D008751:Methylene Blue; D009092:Mucous Membrane / Q000473:pathology; D013194:Staining and Labeling; D013274:Stomach Neoplasms / Q000175:diagnosis*; D014048:Tolonium Chloride
D007454:Iodides; D014048:Tolonium Chloride; D003224:Congo Red; D008751:Methylene Blue; C010389:Lugol's solution