title: Occult gastrointestinal bleeding in celiac sprue.
authors.forename: W C
authors.initials: WC
authors.lastname: Duane
mesh_terms: D002446:Celiac Disease / Q000150:complications*; D005189:False Positive Reactions; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis*; D006801:Humans; D015588:Observer Variation; D009780:Occult Blood; D012680:Sensitivity and Specificity