title: Can biology trump anatomy? Do all node-positive patients with breast cancer need chemotherapy?
authors.forename: N Lynn
authors.initials: NL
authors.lastname: Henry
authors.forename: Daniel F
authors.initials: DF
authors.lastname: Hayes
mesh_terms: D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D001943:Breast Neoplasms / Q000188:drug therapy* / Q000473:pathology*; D017024:Chemotherapy, Adjuvant; D003520:Cyclophosphamide / Q000008:administration & dosage; D005472:Fluorouracil / Q000008:administration & dosage; D006801:Humans; D016729:Leuprolide / Q000008:administration & dosage; D008207:Lymphatic Metastasis; D008727:Methotrexate / Q000008:administration & dosage; D018579:Patient Selection; D020845:Selective Estrogen Receptor Modulators / Q000008:administration & dosage; D013629:Tamoxifen / Q000008:administration & dosage
chemical_list: D020845:Selective Estrogen Receptor Modulators; D013629:Tamoxifen; D003520:Cyclophosphamide; D016729:Leuprolide; D005472:Fluorouracil; D008727:Methotrexate