Effect of Tamoxifen or an Aromatase Inhibitor on Estrogen Metabolism in Women Treated for Newly Diagnosed Breast Cancer
Status: COMPLETED
Study type: OBSERVATIONAL
Conditions: Breast Cancer
Interventions: OTHER: high performance liquid chromatography|OTHER: laboratory biomarker analysis|OTHER: mass spectrometry|OTHER: medical chart review
Sponsor: University of Nebraska
Collaborators: National Cancer Institute (NCI)