. . . . . . "Abstracts"@en . . "Selected abstracts on diagnosis and treatment of esophageal neoplasms"@en . . "Diagnosis and treatment of esophageal neoplasms"@en . . . . . . . "Neoplasm Invasiveness Abstracts." . . "Esophageal Neoplasms Abstracts." . . . . "Cell Transformation, Neoplastic Abstracts." . .