As usual things are rarely clear - and I presume this is for HRT and testosterone - one higher risk one lower - and is not the same as testosterone on its own - as many questions as answers.
RB
http://www.ncbi.nlm.nih.gov/sites/en..._uids=15356405
"CONCLUSIONS: These observations suggest that the addition of testosterone to conventional hormone therapy for postmenopausal women does not increase and may indeed reduce the hormone therapy-associated breast cancer risk-thereby returning the incidence to the normal rates observed in the general, untreated population."
And this is what was reported in the press for the Nurses Study
http://www.medicinenet.com/script/ma...ticlekey=63110
RB
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