title: Sampling and storage of breast cancer tissue for steroid receptor assays.
mesh_terms: D000328:Adult; D000368:Aged; D001943:Breast Neoplasms / Q000032:analysis / Q000473:pathology* / Q000601:surgery; D005260:Female; D005615:Freezing; D006801:Humans; D008875:Middle Aged; D011987:Receptors, Steroid / Q000032:analysis*; D014021:Tissue Preservation / Q000379:methods
chemical_list: D011987:Receptors, Steroid