title: [Advice before recourse must be unambiguous].
authors.forename: Gerd W
authors.initials: GW
authors.lastname: Zimmermann
mesh_terms: D003284:Contract Services / Q000331:legislation & jurisprudence*; D003376:Counseling / Q000331:legislation & jurisprudence*; D005858:Germany; D006801:Humans; D019458:Insurance Coverage / Q000331:legislation & jurisprudence*; D009313:National Health Programs / Q000331:legislation & jurisprudence*; D012051:Reimbursement Mechanisms / Q000331:legislation & jurisprudence*