[Occult blood in the feces].
D001774:Blood Chemical Analysis; D003937:Diagnosis, Differential; D005243:Feces / Q000032:analysis*; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis; D006801:Humans; D007202:Indicators and Reagents; D008722:Methods; D014050:Toluene
D007202:Indicators and Reagents; D014050:Toluene
Okkultes Blut im Stuhl.