The objective of the prospective CYPTAM study was to associate endoxifen concentrations and CYP2D6 genotypes with clinical outcome s in patients with early stage breast cancer receiving tamoxifen, wrote Anabel Sanchez Spitman, PharmD, of the Leiden University Medical Center, the Netherlands, and her colleagues in the Journal of Clinical Oncology stromectol prescription It is therefore logical to deduce that cancer cells would have a fantastic environment in which to populate