Blood in faeces. A comparison of the sensitivity and reproducibility of five chemical methods.
D001560:Benzidines; D002648:Child; D005069:Evaluation Studies as Topic; D005243:Feces / Q000032:analysis*; D006801:Humans; D007202:Indicators and Reagents; D008722:Methods; D008832:Microchemistry; D009780:Occult Blood; D013997:Time Factors
D001560:Benzidines; D007202:Indicators and Reagents