[Rare diseases of the digestive organs and difficulties in their diagnosis].
D001660:Biliary Tract Diseases / Q000175:diagnosis; D003951:Diagnostic Errors; D005767:Gastrointestinal Diseases / Q000175:diagnosis; D006801:Humans; D008722:Methods; D010182:Pancreatic Diseases / Q000175:diagnosis
Redkie i trudnodiagnostiruemye zabolevaniia organov pishchevareniia.