title: Black stool. Some light on a dark subject.
authors.affiliation: Department of Medicine, Duke University Medical Center, Durham 27710.
authors.forename: M
authors.initials: M
authors.lastname: Miller
authors.forename: F A
authors.initials: FA
authors.lastname: Neelon
mesh_terms: D005243:Feces; D005296:Ferrous Compounds / Q000378:metabolism; D006801:Humans; D008551:Melena / Q000175:diagnosis / Q000209:etiology* / Q000378:metabolism; D009780:Occult Blood; D011164:Porphyrias / Q000378:metabolism; D011166:Porphyrins / Q000378:metabolism; D013997:Time Factors
chemical_list: D005296:Ferrous Compounds; D011166:Porphyrins