title: A comparison of washing and brushing cytology and biopsy in the diagnosis of malignant disease of the esophagus, stomach, and colon.
mesh_terms: D001706:Biopsy; D003110:Colonic Neoplasms / Q000175:diagnosis*; D004938:Esophageal Neoplasms / Q000175:diagnosis*; D004945:Esophagoscopy; D005770:Gastrointestinal Neoplasms / Q000473:pathology; D005773:Gastroscopy; D006801:Humans; D008722:Methods; D012812:Sigmoidoscopy; D013274:Stomach Neoplasms / Q000175:diagnosis*