Breast Density, Hormone Levels, and Anticancer Drug Levels in Women With Invasive Breast Cancer Who Are Receiving Exemestane or Anastrozole
Status: COMPLETED
Study type: OBSERVATIONAL
Conditions: Breast Cancer
Interventions: PROCEDURE: mammography
Sponsor: Alliance for Clinical Trials in Oncology
Collaborators: National Cancer Institute (NCI)|NCIC Clinical Trials Group