title: [Results of the use of dyes in the endoscopic diagnosis of esophageal varices].
mesh_terms: D004396:Coloring Agents; D004341:Drug Evaluation; D004932:Esophageal and Gastric Varices / Q000175:diagnosis*; D004945:Esophagoscopy / Q000379:methods*; D006801:Humans; D008751:Methylene Blue
chemical_list: D004396:Coloring Agents; D008751:Methylene Blue
vernacular_title: Resultados del empleo de colorantes en el diagnóstico endoscópico de las varices esofágicas