title: Critical values: has their time arrived for cytopathology?
authors.affiliation: Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, Missouri.
authors.forename: Lester J
authors.initials: LJ
authors.lastname: Layfield
mesh_terms: D016638:Critical Illness / Q000145:classification*; D003584:Cytological Techniques / Q000592:standards; D003937:Diagnosis, Differential; D006801:Humans; D010338:Pathology, Clinical / Q000592:standards*; D012016:Reference Values; D013997:Time Factors