title: [Practice parameters, guidelines, standard].
authors.forename: R
authors.initials: R
authors.lastname: Ratzel
mesh_terms: D013502:General Surgery / Q000331:legislation & jurisprudence / Q000592:standards*; D005858:Germany; D006801:Humans; D008318:Malpractice / Q000331:legislation & jurisprudence; D009313:National Health Programs / Q000331:legislation & jurisprudence; D017410:Practice Guidelines as Topic; D011785:Quality Assurance, Health Care / Q000331:legislation & jurisprudence / Q000592:standards*