title: Interlaboratory variation in results from immunohistochemical assessment of estrogen receptor status.
authors.forename: Lester J
authors.initials: LJ
authors.lastname: Layfield
authors.forename: Neal
authors.initials: N
authors.lastname: Goldstein
authors.forename: Kathryn R
authors.initials: KR
authors.lastname: Perkinson
authors.forename: Alan D
authors.initials: AD
authors.lastname: Proia
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D001943:Breast Neoplasms / Q000473:pathology*; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D007753:Laboratories / Q000592:standards*; D009376:Neoplasms, Hormone-Dependent / Q000473:pathology*; D017063:Outcome Assessment, Health Care; D011960:Receptors, Estrogen / Q000378:metabolism*; D014481:United States
chemical_list: D011960:Receptors, Estrogen