Guidelines, standards and protocols in head and neck cancer: tools not restraints.
Birchall
M A
MA
D002985:Clinical Protocols; D019317:Evidence-Based Medicine; D006258:Head and Neck Neoplasms; D006801:Humans; D017410:Practice Guidelines as Topic; D011785:Quality Assurance, Health Care / Q000592:standards*; D006113:United Kingdom