title: Human epidermal growth factor receptor 2 testing in breast cancer.
authors.forename: Kirsten Vang
authors.initials: KV
authors.lastname: Nielsen
authors.forename: Jan T
authors.initials: JT
authors.lastname: Jørgensen
authors.forename: Andreas
authors.initials: A
authors.lastname: Schønau
authors.forename: Anne
authors.initials: A
authors.lastname: Oster
mesh_terms: D001706:Biopsy; D001940:Breast / Q000378:metabolism / Q000473:pathology; D001943:Breast Neoplasms / Q000175:diagnosis* / Q000378:metabolism*; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D017404:In Situ Hybridization, Fluorescence; D017410:Practice Guidelines as Topic; D018719:Erb-b2 Receptor Tyrosine Kinases / Q000378:metabolism*; D015203:Reproducibility of Results; D014481:United States; D014486:United States Food and Drug Administration