TY - STAND AU - M. Bodmer AU - C. Meier AU - S. Krahenbuhl AU - S. Jick AU - C. Meier BT - Diabetes Care DO - 10.2337/dc09-1791 M1 - 6 PY - 2010 SP - 1304 EP - 8 T2 - Diabetes Care TI - Long-term metformin use is associated with decreased risk of breast cancer VL - 33 SN - 0149-5992 ER -