title: Early diagnosis of gastrointestinal cancer.
mesh_terms: D042241:Early Diagnosis; D005706:Gallbladder Neoplasms; D005770:Gastrointestinal Neoplasms; D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis*
keywords: GALLBLADDER/neoplasms; LIVER NEOPLASM/diagnosis