title: To Dr. H. J. Nord, regarding discussion of the workup of a patient with positive fecal occult blood tests.
authors.forename: M M
authors.initials: MM
authors.lastname: Van Ness
mesh_terms: D001466:Barium Sulfate; D003113:Colonoscopy; D004733:Enema; D006801:Humans; D009780:Occult Blood; D010342:Patient Acceptance of Health Care / Q000706:statistics & numerical data*
chemical_list: D001466:Barium Sulfate