Study of Changes in Estrogen Levels and Grip Strength in Postmenopausal Women Who Have Received 4 to 6 Years of Hormone Therapy for Breast Cancer and Are Currently Receiving Letrozole on Clinical Trial IBCSG-35-07
Conditions
Interventions
- GENETIC: polymorphism analysis
- OTHER: laboratory biomarker analysis
- PROCEDURE: quality-of-life assessment
Sponsor
ETOP IBCSG Partners Foundation