Detection of occult blood in faeces.
D000284:Administration, Oral; D001205:Ascorbic Acid / Q000008:administration & dosage / Q000494:pharmacology; D005188:False Negative Reactions; D005189:False Positive Reactions; D006801:Humans; D007501:Iron / Q000008:administration & dosage / Q000494:pharmacology; D009780:Occult Blood
D007501:Iron; D001205:Ascorbic Acid