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Hormonal replacement therapy after breast cancer—is It Safe? (HABITS) began in May 1997, to compare breast cancer survivors treated for at least 2 years with hormone therapy with treatment other than hormones. By September 2003, a total of 434 women had been randomized and, in December 2003, the steering committee of the HABITS study made the decision to stop the trial because there were 26 women in the treated group and 7 in the non-treated group with new breast cancer diagnoses.

Swedish HABITS Is Cancelled