title: Observer variation in histological grading of breast cancer.
abstract: A multicentre study was conducted to assess the degree of agreement between pathologists grading breast tumours using the WHO criteria. Satisfactory correlation of grades was found to occur with observer variation of 21.9% on 874 tumours.
authors.affiliation: York District Hospital, UK.
authors.forename: D S
authors.initials: DS
authors.lastname: Hopton
authors.forename: J
authors.initials: J
authors.lastname: Thorogood
authors.forename: A D
authors.initials: AD
authors.lastname: Clayden
authors.forename: D
authors.initials: D
authors.lastname: MacKinnon
mesh_terms: D001943:Breast Neoplasms / Q000473:pathology*; D002471:Cell Transformation, Neoplastic / Q000473:pathology; D004739:England; D005260:Female; D006801:Humans; D008938:Mitosis; D015337:Multicenter Studies as Topic; D014944:World Health Organization