Cytological diagnosis of digestive cancer.
D001650:Bile Duct Neoplasms / Q000175:diagnosis*; D003110:Colonic Neoplasms / Q000175:diagnosis; D003581:Cytodiagnosis; D004938:Esophageal Neoplasms / Q000175:diagnosis*; D005770:Gastrointestinal Neoplasms / Q000175:diagnosis*; D006801:Humans; D008722:Methods; D010190:Pancreatic Neoplasms / Q000175:diagnosis*; D013274:Stomach Neoplasms / Q000175:diagnosis; D013997:Time Factors