title: [New risks in billing optional medical services].
authors: A
authors: A
authors: Wienke
mesh_terms: D032022:Delegation, Professional / Q000191:economics / Q000331:legislation & jurisprudence; D017558:Elective Surgical Procedures / Q000191:economics / Q000331:legislation & jurisprudence*; D018588:Fee-for-Service Plans / Q000191:economics / Q000331:legislation & jurisprudence*; D005607:Fraud / Q000191:economics / Q000331:legislation & jurisprudence*; D005858:Germany; D017721:Hospital Costs / Q000331:legislation & jurisprudence*; D006801:Humans; D009313:National Health Programs / Q000191:economics / Q000331:legislation & jurisprudence*; D011331:Private Practice / Q000191:economics / Q000331:legislation & jurisprudence*; D012017:Referral and Consultation / Q000191:economics / Q000331:legislation & jurisprudence; D012051:Reimbursement Mechanisms / Q000191:economics / Q000331:legislation & jurisprudence