title: [Sponsoring: uncertainty despite transparency law].
authors.affiliation: .
authors.forename: H
authors.initials: H
authors.lastname: Holzgreve
mesh_terms: D002309:Cardiology / Q000331:legislation & jurisprudence*; D016265:Conflict of Interest / Q000331:legislation & jurisprudence*; D004345:Drug Industry / Q000331:legislation & jurisprudence*; D037921:Gift Giving; D006801:Humans; D017410:Practice Guidelines as Topic; D014481:United States