title: Interpreting plasma estrogen levels in breast cancer: caution needed.
authors.affiliation: The Institute of Cancer Research; Royal Marsden Hospital NHS Foundation Trust, London, United Kingdom.
authors.forename: Elizabeth J
authors.initials: EJ
authors.lastname: Folkerd
authors.forename: Per E
authors.initials: PE
authors.lastname: Lønning
authors.forename: Mitch
authors.initials: M
authors.lastname: Dowsett
mesh_terms: D014408:Biomarkers, Tumor / Q000097:blood*; D001943:Breast Neoplasms / Q000097:blood*; D004967:Estrogens / Q000097:blood*; D005260:Female; D006801:Humans
chemical_list: D014408:Biomarkers, Tumor; D004967:Estrogens