title: Proficiency testing in cytology--does it have any value?
authors.forename: G K
authors.initials: GK
authors.lastname: Nagy
authors.forename: D N
authors.initials: DN
authors.lastname: Collins
authors.forename: L E
authors.initials: LE
authors.lastname: Newton
mesh_terms: D003581:Cytodiagnosis / Q000592:standards*; D003584:Cytological Techniques / Q000592:standards; D006801:Humans; D011785:Quality Assurance, Health Care; D011786:Quality Control