Randomized Controlled Clinical Study on the Reduction of Tumor Marker Levels in Breast Cancer Patients by Huaier Granules

On the basis of routine clinical treatment/follow-up, take Huaier Granules orally, 10g each time, three times a day, for one year continuously or until disease progression, intolerable toxicity, withdrawal from the study for any reason or death occurs, whichever occurs first.