title: Confusing guidelines.
authors.forename: S
authors.initials: S
authors.lastname: Martin
authors.forename: T
authors.initials: T
authors.lastname: Martin
mesh_terms: D019072:Antibiotic Prophylaxis / Q000592:standards*; D016470:Bacteremia / Q000188:drug therapy* / Q000517:prevention & control; D004697:Endocarditis, Bacterial / Q000188:drug therapy* / Q000517:prevention & control; D019983:Guideline Adherence; D006801:Humans; D017410:Practice Guidelines as Topic; D019616:Thoracic Surgical Procedures