title: Benefit or bias? The role of surgery to remove the primary tumor in patients with metastatic breast cancer.
authors.forename: John A
authors.initials: JA
authors.lastname: Olson
authors.forename: Paul K
authors.initials: PK
authors.lastname: Marcom
mesh_terms: D001943:Breast Neoplasms / Q000401:mortality / Q000473:pathology* / Q000601:surgery*; D005260:Female; D006801:Humans; D008408:Mastectomy; D018579:Patient Selection; D012189:Retrospective Studies; D015983:Selection Bias