Thorpe, S M Impact of standardization of estrogen and progesterone receptor assays of breast cancer biopsies in Denmark. [electronic resource] - European journal of cancer & clinical oncology Aug 1988 - 1263-9 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0277-5379 Standard No.: 10.1016/0277-5379(88)90213-1 doi Subjects--Topical Terms: AgedBiopsyBreast Neoplasms--pathologyDenmarkFemaleHumansMethodsMiddle AgedQuality ControlReceptors, Estrogen--analysisReceptors, Progesterone--analysisReference Standards