title: Practice parameters for critical care medicine: what are they and why do we need them?
authors.forename: B A
authors.initials: BA
authors.lastname: Shapiro
mesh_terms: D003422:Critical Care / Q000592:standards*; D003695:Delivery of Health Care / Q000331:legislation & jurisprudence; D006801:Humans; D017410:Practice Guidelines as Topic; D012955:Societies, Medical; D014481:United States