Recent advances in diagnostic pathology of the gastrointestinal tract.
D001707:Biopsy, Needle / Q000379:methods*; D003937:Diagnosis, Differential; D004724:Endoscopy / Q000379:methods*; D004938:Esophageal Neoplasms / Q000175:diagnosis; D005767:Gastrointestinal Diseases / Q000175:diagnosis*; D005770:Gastrointestinal Neoplasms / Q000175:diagnosis