Maria E. C. Sandberg

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Mammographic density is a strong risk factor for breast cancer, but it is unknown whether density at first breast cancer diagnosis and changes during follow-up influences risk of non-simultaneous contralateral breast cancer (CBC). We collected mammograms for CBC-patients (cases, N = 211) and unilateral breast cancer patients (controls, N = 211),(More)
BACKGROUND It is unclear whether estrogen receptor (ER)-status of first primary breast cancer is associated with risk of metachronous (non-simultaneous) contralateral breast cancer (CBC), and to what extent endocrine therapy affects this association. METHODS We studied the effect of ER-status of the first cancer on the risk of CBC overall, and for(More)
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