title: The swinging pendulum.
authors.affiliation: Department of Surgery, Johns Hopkins Medicine, Bethesda, Maryland.
authors.forename: Bonnie
authors.initials: B
authors.lastname: Sun
authors.affiliation: Department of Surgery, Johns Hopkins Medicine, Bethesda, Maryland.
authors.forename: Michael E
authors.initials: ME
authors.lastname: Zenilman
mesh_terms: D001943:Breast Neoplasms / Q000473:pathology* / Q000601:surgery*; D005260:Female; D006801:Humans; D016462:Mammaplasty / Q000639:trends*; D015412:Mastectomy, Segmental / Q000639:trends*