title: [External quality control in cervical cytopathology: an evaluation from 2000-2004].
mesh_terms: D006282:Health Personnel / Q000193:education; D006801:Humans; D007753:Laboratories / Q000592:standards*; D011785:Quality Assurance, Health Care; D011786:Quality Control; D014626:Vaginal Smears / Q000592:standards*