title: How to perform the fecal occult blood test.
mesh_terms: D002986:Clinical Trials as Topic; D003110:Colonic Neoplasms / Q000175:diagnosis* / Q000517:prevention & control; D005188:False Negative Reactions; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis; D006138:Guaiac; D006454:Hemoglobins / Q000032:analysis; D006801:Humans; D008403:Mass Screening / Q000592:standards; D008722:Methods; D009780:Occult Blood; D011786:Quality Control; D011933:Reagent Kits, Diagnostic; D012004:Rectal Neoplasms / Q000175:diagnosis* / Q000517:prevention & control; D013048:Specimen Handling
chemical_list: D006454:Hemoglobins; D011933:Reagent Kits, Diagnostic; D006138:Guaiac