title: Introduction.
authors.affiliation: Michigan State University, East Lansing, MI, USA.
authors.forename: Sandra Z
authors.initials: SZ
authors.lastname: Haslam
authors.forename: Janet R
authors.initials: JR
authors.lastname: Osuch
mesh_terms: D000368:Aged; D001943:Breast Neoplasms / Q000209:etiology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D017698:Postmenopause