Changes in Breast Density and Blood Hormone Levels in Postmenopausal Women Receiving Anastrozole or Exemestane for Breast Cancer
Status: COMPLETED
Study type: OBSERVATIONAL
Conditions: Breast Cancer
Interventions: GENETIC: polymorphism analysis|OTHER: high performance liquid chromatography|OTHER: laboratory biomarker analysis|PROCEDURE: radiomammography
Sponsor: Alliance for Clinical Trials in Oncology
Collaborators: National Cancer Institute (NCI)