Controls were women who were newly diagnosed in the CTR with BC after January 1, 1965, and who survived as long as the patient case to whom they were matched without developing another cancer
clomid pills for sale 17 For treatment, we used an intention to treat variable, representing the prescribed treatment according to DBCG s guidelines, and categorised it using a matrix combining endocrine, chemo and radiation therapy nine categories endocrine therapy only; chemotherapy only; radiation therapy only; endocrine chemotherapy; endocrine radiation therapy; chemo radiation therapy; endocrine chemo radiation therapy; no therapy; unknown