title: Coffee ground vomit is difficult to identify.
authors: Christian P
authors: CP
authors: Selinger
authors: Nicola M
authors: NM
authors: Jones
authors: Cornelle R
authors: CR
authors: Parker
mesh_terms: D002983:Clinical Competence; D004739:England; D006396:Hematemesis / Q000175:diagnosis*; D006801:Humans; D011237:Predictive Value of Tests