Simple test for ingested iron.
D000747:Anemia, Hypochromic / Q000188:drug therapy*; D005243:Feces / Q000032:analysis*; D005292:Ferricyanides; D006801:Humans; D066298:In Vitro Techniques; D007202:Indicators and Reagents; D007501:Iron / Q000032:analysis*
D005292:Ferricyanides; D007202:Indicators and Reagents; D007501:Iron