States' rights and anesthesia services providers.
D000776:Anesthesiology / Q000191:economics / Q000331:legislation & jurisprudence*; D002568:Certification; D007344:Insurance Claim Reporting / Q000331:legislation & jurisprudence; D007883:Legislation, Medical; D008484:Medicaid / Q000331:legislation & jurisprudence; D006278:Medicare / Q000331:legislation & jurisprudence; D009719:Nurse Anesthetists / Q000191:economics / Q000331:legislation & jurisprudence* / Q000592:standards; D013219:State Government; D014481:United States