Preliminary survey of dysphagia due to malignant disease.
D002277:Carcinoma; D002294:Carcinoma, Squamous Cell; D003680:Deglutition Disorders; D004938:Esophageal Neoplasms; D006801:Humans; D009369:Neoplasms
CARCINOMA, EPIDERMOID; ESOPHAGUS/neoplasms